Howard Hughes in February 1938
Howard Robard Hughes, Jr.
December 24, 1905
Humble, Texas, U.S.
April 5, 1976
en route to Houston, Texas, U.S.
|Resting place||Glenwood Cemetery, Houston, Texas|
California Institute of Technology
Rice University (dropped out in 1924)
Chairman and CEO of Summa Corporation
Founder of The Howard Hughes Corporation
Founder of the Hughes Aircraft Company
Founder and benefactor of the Howard Hughes Medical Institute
|Home town||Houston, Texas|
|Net worth||$1.5 billion (equivalent to $6.22 billion in today's dollars). at the time of his death (approximately 1/1190th of U.S. GNP)|
|Board member of||
Howard Hughes Medical Institute
Ella Rice (m. 1925–29)
Terry Moore (m. 1949–76) (alleged)
Jean Peters (m. 1957–71)
|Known for||Hughes Aircraft; Films.|
|Famous flights||Hughes H-4 Hercules ( Spruce Goose), Transcontinental airspeed record from Los Angeles to Newark NJ (1937), round the world airspeed record (1938)|
Academy Award (1928)
Harmon Trophy (1936 and 1938)
Collier Trophy (1938)
Congressional Gold Medal (1939)
Octave Chanute Award (1940)
National Aviation Hall of Fame (1973)
Howard Robard Hughes, Jr. (December 24, 1905 – April 5, 1976) was an American business tycoon, entrepreneur, investor, aviator, aerospace engineer, inventor, filmmaker and philanthropist. During his lifetime, he was known as one of the wealthiest self-made people in the world. As a maverick film tycoon, Hughes gained prominence in Hollywood from the late 1920s, making big-budget and often controversial films like The Racket (1928), Hell's Angels (1930), Scarface (1932), and The Outlaw (1943).
Subsequently, he formed the Hughes Aircraft Company and hired numerous engineers and designers. He spent the rest of the 1930s setting multiple world air speed records, built the Hughes H-1 Racer and H-4 "Hercules" (better known to history as the "Spruce Goose" aircraft), and acquired and expanded Trans World Airlines (TWA), which was later acquired by and merged with American Airlines. Hughes also acquired Air West and renamed it Hughes Airwest. This airline was eventually acquired by and merged into Republic Airlines (1979–1986).
Hughes was included in the Flying magazine list of the 51 Heroes of Aviation, ranking at No. 25. He is remembered for his eccentric behavior and reclusive lifestyle in later life, caused in part by a worsening obsessive–compulsive disorder (OCD) and chronic pain. His legacy is maintained through the Howard Hughes Medical Institute.
- 1 Early years
- 2 Business career
- 3 Personal life
- 4 Howard Hughes Medical Institute
- 5 Nixon scandal
- 6 Glomar Explorer
- 7 Obsessive–compulsive disorder and physical decline
- 8 Las Vegas baron and recluse
- 9 Death
- 10 Estate
- 11 Awards
- 12 Popular culture
- 13 See also
- 14 References
- 15 Additional resources
- 16 External links
Hughes' birthplace is recorded as either Humble or Houston, Texas. The date is also uncertain, though Hughes claimed that his birthday was Christmas Eve. A 1941 affidavit birth certificate of Hughes, signed by his aunt Annette Gano Lummis and Estelle Boughton Sharp, states that he was born on December 24, 1905, in Harris County, Texas.[N 1] However, his baptismal record of October 7, 1906, in the parish register of St. John's Episcopal Church in Keokuk, Iowa, has his birth listed as September 24, 1905, without reference to the place of birth.[N 2]
His parents were Howard R. Hughes, Sr., a successful inventor and businessman from Missouri of English descent, and Allene Stone Gano. His father had patented the two-cone roller bit, which allowed rotary drilling for petroleum in previously inaccessible places. The senior Hughes made the shrewd and lucrative decision to commercialize the invention by leasing the bits instead of selling them, and founded the Hughes Tool Company in 1909. Hughes's uncle was the famed novelist, screenwriter, and film director Rupert Hughes.
Hughes demonstrated interest in science and technology at a young age. In particular, he had great engineering aptitude, building Houston's first "wireless" radio transmitter at age 11. He went on to be one of the first licensed ham radio operators in Houston, having the assigned callsign W5CY (originally 5CY). At 12, Hughes was photographed in the local newspaper, identified as being the first boy in Houston to have a "motorized" bicycle, which he had built from parts from his father's steam engine. He was an indifferent student, with a liking for mathematics, flying, and mechanics. He took his first flying lesson at 14, and later attended math and aeronautical engineering courses at Caltech.
Allene Hughes died in March 1922 from complications of an ectopic pregnancy. Howard Hughes, Sr., died of a heart attack in 1924. Their deaths apparently inspired Hughes to include the creation of a medical research laboratory in the will that he signed in 1925 at age 19. Howard Sr.'s will had not been updated since Allene's death, and Hughes inherited 75 percent of the family fortune. On his 19th birthday, Hughes was declared an emancipated minor, enabling him to take full control of his life.
Hughes was an excellent and enthusiastic golfer from a young age, often scoring near par figures, and held a handicap of three during his twenties. He played frequently with top players, including Gene Sarazen. Hughes rarely played competitively, and gradually gave up his interest in the sport to pursue other interests.
Hughes withdrew from Rice University shortly after his father's death. On June 1, 1925, he married Ella Botts Rice, daughter of David Rice and Martha Lawson Botts of Houston. They moved to Los Angeles, where he hoped to make a name for himself as a filmmaker.
Hughes enjoyed a highly successful business career beyond engineering, aviation, and filmmaking, though many of his career endeavors involved varying entrepreneurial roles. The Summa Corporation was the name adopted for the business interests of Howard Hughes after he sold the tool division of Hughes Tool Company in 1972. The company serves as the principal holding company for Hughes's business ventures and investments. It is primarily involved in aerospace and defense, electronics, mass media, manufacturing, and hospitality industries, but has maintained a strong presence in a wide variety of industries including real estate, petroleum drilling and oilfield services, consulting, entertainment, and mining. Much of his fortune was later used for philanthropic causes, notably towards health care and medical research.
Hughes entered the entertainment industry after dropping out of Rice University and moving to Los Angeles. His first two films, Everybody's Acting (1927) and Two Arabian Knights (1928), were financial successes, the latter winning the first Academy Award for Best Director of a comedy picture.
Hughes spent $3.8 million to make the flying film Hell's Angels (1930). It earned nearly $8 million, about double the production and advertising costs. Hell's Angels received one Academy Award nomination for Best Cinematography.
He produced another hit, Scarface (1932), a production delayed by censors' concern over its violence.
The Outlaw (1943) was completed in 1941 and featured Jane Russell. It also received considerable attention from industry censors, this time owing to Russell's revealing costumes. Hughes designed a special bra for his leading lady, although Russell decided against wearing it.
For a period of time in the 1940s to late 1950s, Hughes Tool Company ventured into the film and media industry where it then owned the RKO companies, including: RKO Pictures; RKO Studios; RKO Theatres, a chain of movie theatres; the RKO Radio Network, a network of radio stations.
In 1948, Hughes gained control of RKO, a struggling major Hollywood studio, by acquiring 25 percent of the outstanding stock from Floyd Odlum's Atlas Corporation. Within weeks of taking control, he dismissed three-quarters of the work force, and production was shut down for six months in 1949 while he undertook the investigation of the politics of all remaining studio employees. Completed pictures would be sent back for re-shooting if he felt that his star (especially female) was not properly presented, or if a film's anti-communist politics were not sufficiently clear. In 1952, an abortive sale to a Chicago-based group with no experience in the industry disrupted studio operations even further.
Hughes sold the RKO theaters in 1953 as settlement of the United States v. Paramount Pictures, Inc. antitrust case. With the sale of the profitable theaters, the shaky status of the film studio became increasingly apparent. A steady stream of lawsuits from RKO's minority shareholders became an increasing nuisance, charging him with financial misconduct and corporate mismanagement, especially because Hughes wanted to focus on his aircraft-manufacturing and TWA holdings during the Korean War years. Eager to be rid of the distraction, Hughes offered to buy out all other stockholders.
He had gained near-total control of RKO by the end of 1954, at a cost of nearly $24 million, becoming the closest thing to a sole owner of a Hollywood studio seen in three decades. Six months later, Hughes sold the studio to the General Tire and Rubber Company for $25 million. Hughes retained the rights to pictures that he had personally produced, including those made at RKO. He also retained Jane Russell's contract. For Howard Hughes, this was the virtual end of his 25-year involvement in motion pictures; his reputation as a financial wizard emerged unscathed. He reportedly walked away from RKO having made $6.5 million in personal profit.
General Tire was interested mainly in exploiting the value of the RKO library for television programming, though it made some attempts to continue producing films. After a year and a half of mixed success, General Tire shut down film production at RKO for good at the end of January 1957. The studio lots in Hollywood and Culver City were sold to Desilu Productions later that year for $6.15 million.
Beyond extending his business prowess in the manufacturing, aviation, entertainment, and hospitality industries, Hughes was a successful real estate investor. Hughes was deeply involved in the American real estate industry where he amassed vast holdings of undeveloped land both in Las Vegas and in the desert surrounding the city that had gone unused during his lifetime. In 1968, the Hughes Tool Company purchased the North Las Vegas Air Terminal.
Originally known as Summa Corporation, The Howard Hughes Corporation was formed in 1972 when the oil tools business of Hughes Tool Company, then owned by Howard Hughes, Jr., was floated on the New York Stock Exchange under the Hughes Tool name. This forced the remaining businesses of the "original" Hughes Tool to adopt a new corporate name Summa. The name "Summa", Latin for "highest", was adopted without the approval of Hughes himself, who preferred to keep his own name on the business and suggested HRH Properties (for Hughes Resorts and Hotels, and also his own initials).
Initially staying in the Desert Inn, Hughes refused to vacate his room and instead decided to purchase the entire hotel. Hughes extended his financial empire to include Las Vegas real estate, hotels and media outlets, spending an estimated $300 million and using his considerable powers to take-over many of the well known hotels, especially the organized crime connected venues and he quickly became one of the most powerful men in Las Vegas. He was instrumental in changing the image of Las Vegas from its Wild West roots into a more refined cosmopolitan city.
Another portion of Hughes's business interests lies in aviation, airlines, and the aerospace and defense industries. Hughes was a lifelong aircraft enthusiast and pilot. At Rogers Airport in Los Angeles, he learned to fly from pioneer aviators, including transcontinental airspeed record by flying non-stop from Los Angeles to Newark in 7 hours, 28 minutes and 25 seconds (beating his own previous record of 9 hours, 27 minutes). His average ground speed over the flight was 322 mph (518 km/h).
The H-1 Racer featured a number of design innovations: it had retractable landing gear (as Boeing Monomail had five years before) and all rivets and joints set flush into the body of the aircraft to reduce drag. The H-1 Racer is thought to have influenced the design of a number of World War II fighters such as the Mitsubishi Zero, the Focke-Wulf Fw 190 and the F8F Bearcat; although that has never been reliably confirmed. The H-1 Racer was donated to the Smithsonian in 1975 and is on display at the National Air and Space Museum.
On July 14, 1938, Hughes set another record by completing a flight around the world in just 91 hours (3 days, 19 hours, 17 minutes), beating the previous record set in 1933 by Wiley Post in a single engine Lockheed Vega by almost four days. Hughes returned home ahead of photographs of his flight. Taking off from New York City, Hughes continued to Paris, Moscow, Omsk, Yakutsk, Fairbanks, Minneapolis, then returning to New York City. For this flight he flew a Lockheed 14 Super Electra (NX18973, a twin-engine transport with a four-man crew) fitted with the latest radio and navigational equipment. Hughes wanted the flight to be a triumph of American aviation technology, illustrating that safe, long-distance air travel was possible. While he had previously been relatively obscure despite his wealth, being better known for dating Katharine Hepburn, New York City now gave Hughes a ticker-tape parade in the Canyon of Heroes. In 1938, the William P. Hobby Airport in Houston, Texas—known at the time as Houston Municipal Airport—was renamed after Hughes, but the name was changed back after people objected to naming the airport after a living person.
Hughes received many awards as an aviator, including the Harmon Trophy in 1936 and 1938, the Collier Trophy and the Bibesco Cup of the Fédération Aéronautique Internationale in 1938, the Octave Chanute Award in 1940, and a special Congressional Gold Medal in 1939 "in recognition of the achievements of Howard Hughes in advancing the science of aviation and thus bringing great credit to his country throughout the world". According to his obituary in the New York Times, Hughes never bothered to come to Washington to pick up the Congressional Gold Medal, which was eventually mailed to him.
Hughes D-2 and XF-11
The Hughes D-2 was conceived in 1939 as a bomber with five crew members, powered by 42-cylinder Wright R-2160 Tornado engines. In the end it appeared as two-seat fighter-reconnaissance aircraft designated the D-2A, powered by two Pratt & Whitney R-2800-49 engines. The aircraft was constructed using the Duramold process. The prototype was brought to Harper's Dry Lake California in great secrecy in 1943 and first flew on June 20 of that year. Acting on a recommendation of the president's son, Colonel Elliott Roosevelt, who had become friends with Hughes, in September 1943 the USAAF ordered 100 of a reconnaissance development of the D-2, known as the F-11. Hughes then attempted to get the military to pay for the development of the D-2. In November 1944, the hangar containing the D-2A was reportedly hit by lightning and the aircraft was destroyed. The D-2 design was abandoned, but led to the extremely controversial Hughes XF-11. The XF-11 was a large all-metal, two-seat reconnaissance aircraft, powered by two Pratt & Whitney R-4360-31 engines, each driving a set of contra-rotating propellers. Only the two prototypes were completed; the second one with a single propeller per side.
Near-fatal crash of the Sikorsky S-43
In the spring of 1943 Hughes spent nearly a month in Las Vegas, test flying his Sikorsky S-43 amphibian aircraft, practicing touch-and-go landings on Lake Mead in preparation for flying the H-4 Hercules. The weather conditions at the lake during the day were ideal and he enjoyed Las Vegas at night. On May 17, 1943, Hughes flew the Sikorsky from California carrying two CAA aviation inspectors, two of his employees and actress Ava Gardner. Hughes dropped Gardner off in Las Vegas and proceeded to Lake Mead to conduct qualifying tests in the S-43. The test flight did not go well. The Sikorsky crashed, killing CAA inspector Ceco Cline and Hughes employee Richard Felt. Hughes suffered a severe gash on the top of his head when he hit the upper control panel and had to be rescued by one of the others on board. Hughes paid divers $100,000 to raise the aircraft and later spent more than $500,000 restoring the aircraft.
Near-fatal crash of the XF-11
Hughes was involved in a near-fatal aircraft accident on July 7, 1946, while performing the first flight of the prototype U.S. Army Air Forces reconnaissance aircraft, the XF-11, near Hughes airfield at Culver City, California. An oil leak caused one of the contra-rotating propellers to reverse pitch, causing the aircraft to yaw sharply and lose altitude rapidly. Hughes tried to save the craft by landing it at the Los Angeles Country Club golf course, but just seconds before reaching the course, the XF-11 started to drop dramatically and crashed in the Beverly Hills neighborhood surrounding the country club.
When the XF-11 finally came to a halt after destroying three houses, the fuel tanks exploded, setting fire to the aircraft and a nearby home at 808 North Whittier Drive, owned by Lt Col. Charles E. Meyer. Hughes managed to pull himself out of the flaming wreckage but lay beside the aircraft until he was rescued by Marine Master Sgt. William L. Durkin, who happened to be in the area visiting friends. Hughes sustained significant injuries in the crash, including a crushed collar bone, multiple cracked ribs, crushed chest with collapsed left lung, shifting his heart to the right side of the chest cavity, and numerous third-degree burns. An oft-told story said that Hughes sent a check to the Marine weekly for the remainder of his life as a sign of gratitude. However, Durkin's daughter denied that he took any money for the rescue.
Despite his physical injuries, Hughes was proud that his mind was still working. As he lay in his hospital bed, he decided that he did not like the bed's design. He called in plant engineers to design a customized bed, equipped with hot and cold running water, built in six sections, and operated by 30 electric motors, with push-button adjustments. The hospital bed was designed by Hughes specifically to alleviate the pain caused by moving with severe burn injuries. Despite the fact that he never had the chance to use the bed that he designed, Hughes's bed served as a prototype for the modern hospital bed. Hughes's doctors considered his recovery almost miraculous. Hughes, however, believed that neither miracle nor modern medicine contributed to his recovery. Instead he vigorously asserted that the natural life-giving properties of fresh squeezed orange juice were responsible. (He only drank orange juice he had personally witnessed being freshly squeezed.) 
Many attribute his long-term dependence on opiates to his use of codeine as a painkiller during his convalescence. The trademark mustache he wore afterward was used to hide a scar on his upper lip resulting from the accident.
The War Production Board (not the military) originally contracted with Henry Kaiser and Hughes to produce the gigantic HK-1 Hercules flying boat for use during World War II to transport troops and equipment across the Atlantic as an alternative to seagoing troop transport ships that were vulnerable to German U-boats. The project was opposed by the military services, thinking it would siphon resources from higher priority programs, but was advocated by Hughes's powerful allies in Washington, D.C. After disputes, Kaiser withdrew from the project and Hughes elected to continue it as the H-4 Hercules. However, the aircraft was not completed until after the end of World War II.
The Hercules was the world's largest flying boat, the largest aircraft made from wood, and, at 319 feet 11 inches (97.51 m), had the longest wingspan of any aircraft (the next largest wingspan was about 310 ft (94 m)). (The Hercules is no longer the longest or heaviest aircraft ever built; both of those titles are currently held by the Antonov An-225 Mriya.)
The Hercules flew only once for one mile (1.6 km), and 70 feet (21 m) above the water, with Hughes at the controls, on November 2, 1947.
The Hercules was nicknamed the "Spruce Goose" by critics, but was actually made largely from birch (not spruce), rather than of aluminum, because the contract required that Hughes build the aircraft of non-strategic materials. It was built in Hughes's Westchester, California facility. In 1947, Howard Hughes was summoned to testify before the Senate War Investigating Committee to explain why the H-4 development had been so troubled, and why the F-11 had resulted in only two prototypes after $22 million spent. General Elliott Roosevelt and numerous other USAAF officers were also called to testify in hearings that transfixed the nation during August and again in November 1947. In a hotly disputed testimony over TWA's route awards and malfeasance in the defense acquisition process, Hughes turned the tables on his main interlocutor, Maine Senator Owen Brewster, and the hearings were widely interpreted as a Hughes victory. After display at the Long Beach, California harbor, the Hercules was moved to McMinnville, Oregon, where it is now part of the Evergreen Aviation Museum.
Hughes Aircraft Company, a division of Hughes Tool Company, was originally founded by Hughes in 1932, in a rented corner of a Lockheed Aircraft Corporation hangar in Burbank, California, to build the H-1 racer. During and after World War II, Hughes fashioned his company into a major defense contractor. The Hughes Helicopters division started in 1947 when helicopter manufacturer Kellett sold their latest design to Hughes for production. The company was a major American aerospace and defense contractor manufacturing numerous technology related products that include spacecraft vehicles, military aircraft, radar systems, electro-optical systems, the first working laser, aircraft computer systems, missile systems, ion-propulsion engines (for space travel), commercial satellites, and other electronics systems.
In 1948, Hughes created a new division of the company, the Hughes Research Laboratories, where it focused on advanced developments in microelectronics, information & systems sciences, materials, sensors, and photonics; their workspace spans from basic research to product delivery. It has particularly emphasized capabilities in high performance integrated circuits, high power lasers, antennas, networking, and smart materials.
In 1939, at the urging of Jack Frye, president of Trans World Airlines (TWA), Hughes quietly purchased a majority share of TWA stock for nearly $7 million and took control of the airline. Upon assuming ownership, Hughes was prohibited by federal law from building his own aircraft. Seeking an aircraft that would perform better than TWA's fleet of Boeing 307 Stratoliners, Hughes and Frye approached Boeing's competitor, Lockheed. Hughes had a good relationship with Lockheed since they had built the aircraft he used in his record flight around the world in 1938. Lockheed agreed to Hughes and Frye's request that the new aircraft be built in secrecy. The result was the revolutionary Constellation and TWA purchased the first 40 of the new airliners off the production line.
In 1956, Hughes placed an order for 63 Convair 880s for TWA at a cost of $400 million. Although Hughes was extremely wealthy at this time, outside creditors demanded that Hughes relinquish control of TWA in return for providing the money. In 1960, Hughes was ultimately forced out of TWA, although he owned 78% of the company and battled to regain control.
Before Hughes' removal, the TWA jet financing issue precipitated the end of Hughes' relationship with Noah Dietrich. Dietrich claimed Hughes developed a plan by which Hughes Tool Company profits would be inflated to sell the company for a windfall that would pay the bills for the 880s. Dietrich agreed to go to Texas to implement the plan on the condition that Hughes agreed to a capital gains arrangement he had long promised Dietrich. When Hughes balked, Dietrich resigned immediately. "Noah", Dietrich quoted Hughes as replying, "I cannot exist without you!" Dietrich stood firm and eventually had to sue to retrieve personal possessions from his office after Hughes ordered it locked.
In 1966, a U.S. federal court forced Hughes to sell his TWA shares because of concerns over conflict of interest between his ownership of both TWA and Hughes Aircraft. The sale of his TWA shares netted him a profit of $547 million.
In 1970, Hughes went back into the airline business, buying San Francisco-based Air West and renaming it Hughes Airwest. Air West had been formed in 1968 by the merger of Bonanza Air Lines, Pacific Air Lines and West Coast Airlines, all of which operated in the western U.S. By the late 1970s, Hughes Airwest operated an all-jet fleet comprised of Boeing 727-200, Douglas DC-9-10, and McDonnell Douglas DC-9-30 jetliners serving an extensive route network in the western U.S. with flights to Mexico and western Canada as well. By 1980, the airline's route system reached as far east as Houston Hobby Airport and Milwaukee with a total of forty-two (42) destinations being served. Hughes Airwest was then acquired by and merged into Republic Airlines (1979–1986) in late 1980. Republic was subsequently acquired by and merged into Northwest Airlines which in turn was eventually merged into Delta Air Lines.
In 1929 Hughes' wife, Ella, returned to Houston and filed for divorce. Hughes dated many famous decades-younger women, including Billie Dove, Bette Davis, Ava Gardner, Olivia de Havilland, Katharine Hepburn, Ginger Rogers and Gene Tierney. He also proposed to Joan Fontaine several times, according to her autobiography No Bed of Roses. Jean Harlow accompanied him to the premiere of Hell's Angels, but Noah Dietrich wrote many years later that the relationship was strictly professional, as Hughes apparently personally disliked Harlow. In his 1971 book, Howard: The Amazing Mr. Hughes, Dietrich said that Hughes genuinely liked and respected Jane Russell, but never sought romantic involvement with her. According to Russell's autobiography, however, Hughes once tried to bed her after a party. Russell (who was married at the time) refused him, and Hughes promised it would never happen again. The two maintained a professional and private friendship for many years. Hughes remained good friends with Tierney who, after his failed attempts to seduce her, was quoted as saying "I don't think Howard could love anything that did not have a motor in it." Later, when Tierney's daughter Daria was born deaf and blind and with a severe learning disability, because of Tierney's being exposed to rubella during her pregnancy, Hughes saw to it that Daria received the best medical care and paid all expenses.
In 1933, Hughes purchased unseen the Rover, a luxury steam yacht previously owned by British shipping magnate Lord Inchcape. "I have never seen the Rover but bought it on the blue prints, photographs and the reports of Lloyd's surveyors. My experience is that the English are the most honest race in the world." Hughes renamed the yacht Southern Cross and later sold her to Swedish entrepreneur Axel Wenner-Gren.
On July 11, 1936, Hughes struck and killed a pedestrian named Gabriel S. Meyer with his car, at the corner of 3rd Street and Lorraine in Los Angeles. Hughes was certified as sober at the hospital he was taken to after the accident, but an attending doctor made a note that Hughes had been drinking. A witness to the accident told police that Hughes was driving erratically and too fast, and that Meyer had been standing in the safety zone of a streetcar stop. Hughes was booked on suspicion of negligent homicide and held overnight in jail until his attorney, Neil McCarthy, obtained a writ of habeas corpus for his release pending a coroner's inquest. By the time of the coroner's inquiry, however, the witness had changed his story and claimed that Meyer had moved directly in front of Hughes's car. Nancy Bayly (Watts), who was in the car with Hughes at the time of the accident, corroborates this version. On July 16, 1936, Hughes was held blameless by a coroner's jury at the inquest into Meyer's death. Hughes told reporters outside the inquiry, "I was driving slowly and a man stepped out of the darkness in front of me."
On January 12, 1957, Hughes married actress Jean Peters. The couple met in the 1940s, before Peters became a film actress. They had a highly publicized romance in 1947 and there was talk of marriage, but she said she could not combine it with her career. Some later claimed that Peters was "the only woman [Hughes] ever loved", and he reportedly had his security officers follow her everywhere even when they were not in a relationship. Such reports were confirmed by actor Max Showalter, who became a close friend of Peters while shooting Niagara (1953). Showalter told in an interview that because he frequently met with Peters, Hughes' men threatened to ruin his career if he did not leave her alone.
Howard Hughes Medical Institute
In 1953, Hughes launched the Howard Hughes Medical Institute in Miami, Florida, and currently located in Chevy Chase, Maryland, formed with the express goal of basic biomedical research, including trying to understand, in Hughes' words, the "genesis of life itself", due to his lifelong interest in science and technology. Hughes' first will, which he signed in 1925 at the age of 19, stipulated that a portion of his estate should be used to create a medical institute bearing his name. When a major battle with the IRS loomed ahead, Hughes gave all his stock in the Hughes Aircraft Company to the institute, thereby turning the aerospace and defense contractor into a for-profit entity of a fully tax-exempt charity. Hughes' internist, Verne Mason, who treated Hughes after his 1946 aircraft crash, was chairman of the institute's medical advisory committee. The Howard Hughes Medical Institute's new board of trustees sold Hughes Aircraft in 1985 to General Motors for $5.2 billion, allowing the institute to grow dramatically.
Shortly before the 1960 Presidential election, Richard Nixon was alarmed when it was revealed that his brother, Donald, received a $205,000 loan from Hughes. It has long been speculated that Nixon's drive to learn what the Democrats were planning in 1972 was based in part on his belief that the Democrats knew about a later bribe that his friend Bebe Rebozo had received from Hughes after Nixon took office.
In late 1971, Donald Nixon was collecting intelligence for his brother in preparation for the upcoming presidential election. One of Donald's sources was John H. Meier, a former business adviser of Hughes who had also worked with Democratic National Committee Chair Larry O'Brien.
Meier, in collaboration with former Vice President of the United States Hubert Humphrey and others, wanted to feed misinformation to the Nixon campaign. Meier told Donald that he was sure the Democrats would win the election because Larry O’Brien had a great deal of information on Richard Nixon’s illicit dealings with Howard Hughes that had never been released; O’Brien didn’t actually have any such information, but Meier wanted Nixon to think he did. Donald told his brother that O’Brien was in possession of damaging Hughes information that could destroy his campaign. Terry Lenzner, who was the chief investigator for the Senate Watergate Committee, speculates that it was Nixon's desire to know what O'Brien knew about Nixon's dealings with Hughes that may have partially motivated the Watergate break-in.
In 1972, Hughes was approached by the CIA to help secretly recover Soviet submarine K-129, which had sunk near Hawaii four years earlier. Thus, the special-purpose salvage vessel Glomar Explorer was born. Hughes' involvement provided the CIA with a plausible cover story, having to do with civilian marine research at extreme depths and the mining of undersea manganese nodules. In the summer of 1974, Glomar Explorer attempted to raise the Soviet vessel.
However, during the recovery a mechanical failure in the ship's grapple caused half of the submarine to break off and fall to the ocean floor. This section is believed to have held many of the most sought-after items, including its code book and nuclear missiles. Two nuclear-tipped torpedoes and some cryptographic machines were recovered, along with the bodies of six Soviet submariners who were subsequently given formal burial at sea in a filmed ceremony. The operation, known as Project Azorian (but incorrectly referred to by the press as Project Jennifer), became public in February 1975 when burglars obtained secret documents from Hughes' headquarters in June 1974. Though he lent his name to the operation, Hughes and his companies had no actual involvement in the project. The Glomar Explorer was eventually acquired by Transocean Inc., an offshore oil and gas drilling rig company.
Obsessive–compulsive disorder and physical decline
As early as the 1930s, Hughes displayed signs of mental illness, primarily obsessive-compulsive disorder. Close friends reported that he was obsessed with the size of peas, one of his favorite foods, and used a special fork to sort them by size.
While directing The Outlaw, Hughes became fixated on a small flaw in one of Jane Russell's blouses, claiming that the fabric bunched up along a seam and gave the appearance of two nipples on each breast. He reportedly wrote a detailed memorandum to the crew on how to fix the problem. Richard Fleischer, who directed His Kind of Woman with Hughes as executive producer, wrote at length in his autobiography about the difficulty of dealing with the tycoon. In his book, Just Tell Me When to Cry, Fleischer explained that Hughes was fixated on trivial details and was alternately indecisive and obstinate. He also revealed that Hughes's unpredictable mood swings made him wonder if the film would ever be completed.
In 1947, after the U.S. Government rejected his massive H-4 Hercules, Hughes, who had suffered a near-fatal aircraft crash in 1946, told his aides that he wanted to screen some movies at a film studio near his home. He stayed in the studio's darkened screening room for more than four months, never leaving. He ate only chocolate bars and chicken and drank only milk, later urinating in the empty bottles and containers. He was surrounded by dozens of Kleenex boxes that he continuously stacked and re-arranged. He wrote detailed memos to his aides giving them explicit instructions not to look at him nor speak to him unless spoken to. Throughout this period, Hughes sat fixated in his chair, often naked, continually watching movies. When he finally emerged in the spring of 1948, his hygiene was terrible, he had not bathed nor cut his hair and nails for weeks although this may have been due to allodynia (pain response to stimuli that would normally not cause pain).
After the screening room incident, Hughes moved into a bungalow at the Beverly Hills Hotel where he also rented rooms for his aides, his wife, and numerous girlfriends. He would sit naked in his bedroom with a pink hotel napkin placed over his genitals, watching movies. This may have been because Hughes found the touch of clothing painful due to the allodynia. He probably watched movies constantly to distract him from his pain—a common practice among patients with intractable pain, especially those who do not receive adequate treatment. In one year, Hughes spent an estimated $11 million at the hotel.
Hughes began purchasing all restaurant chains and four star hotels that had been founded within the state of Texas. This included, if for only a short period, many unknown franchises currently out of business. He placed ownership of the restaurants with the Howard Hughes Medical Institute, and all licenses were resold shortly after.
Hughes insisted on using tissues to pick up objects, to insulate himself from germs. He would also notice dust, stains or other imperfections on people's clothes and demand that they take care of them. Once one of the most visible men in America, Hughes ultimately vanished from public view—though tabloids continued to follow rumors of his behavior and whereabouts. He was reported to be terminally ill, mentally unstable, or even dead.
Injuries from numerous aircraft crashes caused Hughes to spend much of his later life in pain, and he eventually became addicted to codeine, which he injected intramuscularly. Hughes had his hair cut and nails trimmed only once a year, likely due to the pain caused by the RSD/CRPS, which was caused by the plane crashes.
Las Vegas baron and recluse
The wealthy and aging Howard Hughes, accompanied by his entourage of personal aides, began moving from one hotel to another, always taking up residence in the top floor penthouse. In the last ten years of his life, 1966 to 1976, Hughes lived in hotels in many cities—including Beverly Hills, Boston, Las Vegas, Nassau, Freeport, Vancouver, London, Managua, and Acapulco.
On November 24, 1966 (Thanksgiving Day), Hughes arrived in Las Vegas by railroad car and moved into the Desert Inn. Because he refused to leave the hotel, and to avoid further conflicts with the owners, Hughes bought the Desert Inn in early 1967. The hotel's eighth floor became the nerve center of Hughes' empire and the ninth-floor penthouse became his personal residence. Between 1966 and 1968, he bought several other hotel-casinos—including the Castaways, New Frontier, the Landmark Hotel and Casino, and the Sands. He bought the small Silver Slipper casino just so he could have its trademark neon silver slipper moved. Visible from Hughes' bedroom, it apparently had kept him up at night.
After Hughes left the Desert Inn, hotel employees discovered his drapes had not been opened in the nine years he lived there, and had rotted through. An unusual incident marked an earlier Hughes connection to Las Vegas: during his 1954 engagement at the Last Frontier hotel in Las Vegas, flamboyant entertainer Liberace mistook Howard Hughes for his lighting director, instructing him to instantly bring up a blue light should he start to play Clair de lune. Hughes nodded in compliance—but the hotel's entertainment director arrived and introduced Hughes to Liberace.
Hughes wanted to change the image of Las Vegas to something more glamorous. As Hughes wrote in a memo to an aide, "I like to think of Las Vegas in terms of a well-dressed man in a dinner jacket and a beautifully jeweled and furred female getting out of an expensive car." Hughes bought several local television stations (including KLAS-TV).
Hughes' considerable business holdings were overseen by a small panel unofficially dubbed "The Mormon Mafia" because of the many Latter-day Saints on the committee, led by Frank William Gay. In addition to supervising day-to-day business operations and Hughes' health, they also went to great pains to satisfy Hughes' every whim. Hughes once became fond of Baskin-Robbins' banana nut ice cream, so his aides sought to secure a bulk shipment for him—only to discover that Baskin-Robbins had discontinued the flavor. They put in a request for the smallest amount the company could provide for a special order, 200 gallons (750 L), and had it shipped from Los Angeles. A few days after the order arrived, Hughes announced he was tired of banana nut and wanted only chocolate marshmallow ice cream. The Desert Inn ended up distributing free banana nut ice cream to casino customers for a year. In a 1996 interview, ex–Howard Hughes communicator Robert Maheu said, "There is a rumor that there is still some banana nut ice cream left in the freezer. It is most likely true."
As an owner of several major Las Vegas businesses, Hughes wielded much political and economic influence in Nevada and elsewhere. During the 1960s and early 1970s, he disapproved of underground nuclear testing at the Nevada Test Site. Hughes was concerned about the risk from residual nuclear radiation, and attempted to halt the tests. When the tests finally went through despite Hughes' efforts, the detonations were powerful enough that the entire hotel where he was staying trembled with the shock waves. In two separate, last-ditch maneuvers, Hughes instructed his representatives to offer million-dollar bribes to both presidents Lyndon B. Johnson and Richard Nixon.
In 1970, Jean Peters filed for divorce. The two had not lived together for many years. Peters requested a lifetime alimony payment of $70,000 a year, adjusted for inflation, and waived all claims to Hughes' estate. Hughes offered her a settlement of over a million dollars, but she declined it. Hughes did not insist on a confidentiality agreement from Peters as a condition of the divorce. Aides reported that Hughes never spoke ill of her. She refused to discuss her life with Hughes and declined several lucrative offers from publishers and biographers. Peters would state only that she had not seen Hughes for several years before their divorce and had only dealt with him by phone.
Hughes was living in the Intercontinental Hotel near Lake Managua in Nicaragua, seeking privacy and security, when a magnitude 6.5 earthquake damaged Managua in December 1972. As a precaution, Hughes moved to the Nicaraguan National Palace and stayed there as a guest of Anastasio Somoza Debayle before leaving for Florida on a private jet the following day. He subsequently moved into the Penthouse at the Xanadu Princess Resort on Grand Bahama Island, which he had recently purchased. He lived almost exclusively in the penthouse of the Xanadu Beach Resort & Marina for the last four years of his life. Hughes had spent a total of $300 million on his many properties in Las Vegas.
In 1972, author Clifford Irving caused a media sensation when he claimed he had co-written an authorized autobiography of Hughes. Hughes was so reclusive that he did not immediately publicly refute Irving's statement, leading many to believe the Irving book was genuine. However, before the book's publication Hughes finally denounced Irving in a teleconference and the entire project was eventually exposed as a hoax. Irving was later convicted of fraud and spent 17 months in prison. In 1974, the Orson Welles film F for Fake included a section on the Hughes biography hoax. In 1977, The Hoax by Clifford Irving was published in Great Britain, telling his story of these events. The 2007 film The Hoax, starring Richard Gere, is also based on these events.
Hughes was reported to have died on April 5, 1976, at 1:27 p.m. on board an aircraft owned by Robert Graf and piloted by Jeff Abrams. He was en route from his penthouse at the Acapulco Fairmont Princess Hotel in Mexico to the Methodist Hospital in Houston, Texas. Other accounts indicate that he died in the flight from Freeport, Grand Bahama, to Houston.
After receiving a call, his senior counsel, Frank P. Morse, ordered his staff to get his body on a plane and return him to the United States. It was common that foreign countries would hold corpse as ransom so that an estate could not be settled. Morse ordered the pilots to announce Hughes' death once they crossed U.S. territory. (Morse, 2015)
His reclusive activities (and possibly his drug use) made him practically unrecognizable. His hair, beard, fingernails, and toenails were long—his tall 6 ft 4 in (193 cm) frame now weighed barely 90 pounds (41 kg), and the 
A subsequent  X-rays revealed five broken-off hypodermic needles in the flesh of his arms. To inject codeine into his muscles, Hughes had used glass syringes with metal needles that easily became detached.
The red brick house where Hughes lived as a teenager at 3921 Yoakum St., Houston today serves as the headquarters of the Theology Department of the University of St. Thomas.
Approximately three weeks after Hughes' death, a Howard Hughes Medical Institute); nearly $470 million to the upper management in Hughes' companies and to his aides; $156 million to first cousin William Lummis; and $156 million split equally between his two ex-wives Ella Rice and Jean Peters.
Hughes left his entire estate, in his last will, and according to his senior counsel (Frank P. Morse) to the Hughes Medical Institute as he had no connection to family and was seriously ill. This is contrary to the many wills that have surfaced after his death. The original will, that included payments to aides, never surfaced and was apparently in a home surrounding the Desert Inn Golf Course, belonging to the mother of an assistant. He had no desire to leave any money to family, aides, churches, including William Gay and Frank Morse (Morse, 1976). Hughes was not Mormon and had no reason to leave his estate to that church. Frank P. Morse is still the attorney of record for Hughes. Gay has devoted his life to the Mormon Church. (Morse, 2015)
A further $156 million was endowed to a gas-station owner named intestate. Jonathan Demme's film Melvin and Howard, written by Bo Goldman and starring Jason Robards and Paul Le Mat, was based on Dummar's story.
Hughes' $2.5 billion estate was eventually split in 1983 among 22 cousins, including William Lummis, who serves as a trustee of the Howard Hughes Medical Institute.
The U.S. Supreme Court ruled that Hughes Aircraft was owned by the Howard Hughes Medical Institute, which sold it to General Motors in 1985 for $5.2 billion. The court rejected suits by the states of California and Texas claiming they were owed inheritance tax. In 1984, Hughes' estate paid an undisclosed amount to Terry Moore, who claimed she and Hughes had secretly married on a yacht in international waters off Mexico in 1949 and never divorced. Moore never produced proof of a marriage, but her book, The Beauty and the Billionaire, became a bestseller.
Howard Hughes has now emerged as one of the 20th century's most iconic business and aviation figures spawning a wide range of cultural references.
- Two Tickets to Broadway (1951) Janet Leigh plays a small-town girl who hopes to make it big in the Big Apple.
- George Peppard plays a hard-driven industrialist more than a little reminiscent of Howard Hughes.
- Willard Whyte, a billionaire from the 1971 James Bond film, Diamonds Are Forever, is based on Howard Hughes. Hughes, a friend of producer Albert Broccoli, let his hotel and casino be used in the filming.
- The Amazing Howard Hughes (1977), directed by William A. Graham, with Tommy Lee Jones as Howard Hughes, from ages 18 to 70.
- Melvin and Howard (1980), directed by Jonathan Demme and starring Jason Robards (a distant cousin) as Howard Hughes and Paul Le Mat as Melvin Dummar. The film won Academy Awards for Best Original Screenplay (Bo Goldman) and Best Supporting Actress (Mary Steenburgen). The film focuses on Melvin Dummar's claims of meeting Hughes in the Nevada desert and subsequent estate battles over his inclusion in Hughes's will. Critic Pauline Kael called the film "an almost flawless act of sympathetic imagination".
- Portrayed by Dean Stockwell in Tucker (1988).
- Hughes was portrayed by Terry O'Quinn in Disney's The Rocketeer (1991), substituting for the "mystery inventor" (Doc Savage) in the original comic book version.
- "Howard Hughes Documentary", broadcast in 1992 as an episode of the Time Machine documentary series, was introduced by Peter Graves, later released by A&E Home Video.
- Before The Aviator (2004), there were several attempts to create a biopic based on the life of Hughes. For years, director-actor Warren Beatty wanted to play Hughes and direct a big-screen film of the mogul. It was to be released alongside Beatty's film Reds, but owing to the lack of the right script, the project was abandoned. However, in 2015, Beatty will play as Hughes with an ensemble cast in Untitled Warren Beatty project in which he also directed. Set during the later part of Hughes's life, the film is about a love affair between a younger woman and the reclusive billionaire.
- In the 1990s, producers with Touchstone Pictures wanted to do it with John Malkovich, Edward Norton, or Johnny Depp as Hughes, but because of climbing costs that venture was abandoned. Castle Rock Entertainment also tried to develop a biopic called Mr. Hughes with Jim Carrey starring and with Christopher Nolan directing and re-writing a script originated by David Koepp and Brian De Palma. When The Aviator began production, the idea was scrapped, and Nolan went on to direct Batman Begins. Some of the details of Hughes as an adult were confirmed in A. Scott Berg's memoir of Katharine Hepburn, Kate Remembered.
- The Aviator (2004), directed by Martin Scorsese and starring Leonardo DiCaprio as Hughes. Nominated for 11 Academy Awards, and winning five, the acclaimed film focuses primarily on Hughes' achievements in aviation and in the movies and on the increasing handicaps imposed on him by his obsessive–compulsive behavior, and ends shortly after the successful flight of the Hercules in 1947.
- Howard Hughes: The Real Aviator documentary was broadcast in 2004, and went on to win the Grand Festival Award for Best Documentary at the 2004 Berkeley Video & Film Festival.
- The American Aviator: The Howard Hughes Story was broadcast in 2006 on the Biography Channel. It was later released to home media as a DVD with a copy of the full-length film The Outlaw starring Jane Russell.
- Captain America: The First Avenger (2011), as a plot-related prequel to Iron Man 2 (2010), in which Howard Stark (played by Dominic Cooper), father of Tony Stark (Iron Man), showed his inventions of future technology, clearly picturing Hughes' persona and enthusiasm. His subsequent appearances in the TV series Marvel's Agent Carter further this persona, as well as depicting him as sharing the real Hughes' reputation as a womanizer. Stan Lee has noted that Tony, who shared several of these traits himself, was based on Hughes.
- In The Simpsons episode "$pringfield (Or, How I Learned to Stop Worrying and Love Legalized Gambling)", Mr. Burns refuses to leave his room after the opening of his casino and develops a paranoid obsession with germs and cleanliness; his hair and nails become unkempt, all of which parody Hughes' later life. He also makes a small model airplane called the Spruce Moose (a reference to Hughes' Spruce Goose), which he believes is a real, flyable plane.
- In the Beverly Hillbillies episode, The Clampett-Hewes Empire, Mr. Drysdale gets enthusiastic when he hears the news that Jed Clampett is going into the airport business with "Howard Hughes" and does everything he can to make "Mr. Hughes" as welcome as possible (even putting together a small girl chorus singing "We Love You Howard Hughes")...until he discovers to his chagrin the "Howard Hughes" Jed Clampett is partnering with is not the famous billionaire airplane aficionado; he's nothing but a plain old, impoverished, henpecked husband farmer whose last name is Hewes (H-E-W-E-S)!
- Andrew Ryan, partially based on Hughes, is a fictional character in the 2007 video game, BioShock. He was an industrialist business magnate in the Post-WW2 1940s, and seeking to avoid governments, religions and other 'parasitic' influences, ordered the secret construction of an underwater city, Rapture. 15+ Years later, when Ryan's vision for an Objectivist utopia in Rapture falls into dystopia, he hides himself away and uses armies of mutated humans, "Splicers", to defend himself and fight against those trying to take over his City, including the player-character Jack within the first game.
- Robert House, largely based on Hughes, is a fictional character in the 2010 video game, Fallout: New Vegas. He was a naturally gifted engineer and aerospace enthusiast, much like the real Hughes. The game takes place in an alternate reality in 2281 after a catastrophic nuclear war in 2077. Mr. House defends Las Vegas against most of the missiles, and preserves his life through robotics, cryogenics and computers—eventually controlling the post-apocalyptic New Vegas, which the player character experiences. Many references are made to the life of Hughes, including a family-owned tool company, a crashed plane in Lake Mead, and an in-game photo similar to the famous photo of Hughes standing before a Boeing P-12.
- In L.A. Noire, Hughes makes an appearance presenting his Hercules H-4 aircraft in the game introduction.
- In Team Fortress 2 a hat referencing him can be obtained, named Barnstormer, the description of which references his film career, his aeronautics past, and some of his obsessions. The class that uses this hat is also a reference, since it is the Engineer.
- Howard Hughes appears as a character in Death and Honor (Putnam, 2008), W.E.B. Griffin's fictional account of the clandestine espionage activities of agents of the United States Office of Strategic Services (the "OSS") during World War II. In the novel, Hughes is portrayed as an unofficial intelligence community insider.
- Howard Hughes also appears as a character in James Ellroy's L.A. Quartet and Underworld USA Trilogy. In the latter saga, Hughes is described as reclusive, eccentric and mentally disturbed. He plans to take over the mafia's casinos in Las Vegas to establish a "germ-free environment" for his residence.
- Stan Lee has repeatedly stated he created the Marvel Comics character Iron Man's civilian persona, Tony Stark, drawing inspiration from Howard Hughes' colorful lifestyle and personality. Additionally, the first name of Stark's father is Howard.
- Jonas Cord, primary character in the Harold Robbins novel, The Carpetbaggers, is a literary twin of Howard Hughes.
- In the novel Jailbird by Kurt Vonnegut, the character Mary Kathleen O'Looney has several traits that were obviously modeled after Howard Hughes (living as a paranoid homeless person while simultaneously being immensely rich and the CEO of a huge corporation, her orders validated by her fingerprints only).
- Howard Hughes is discussed in an essay by Joan Didion, "7000 Romaine, Los Angeles 38". The essay is included in the collection Slouching Towards Bethlehem.
- "Howard Hughes' Blues" is a song about Hughes by John Hartford; it is a track on Hartford's album Morning Bugle.
- In the Jim Croce song "Workin' at the Car Wash Blues", the narrator refers to himself as "an undiscovered Howard Hughes".
- Hughes is referenced in the 1975 hit single, 'Wall Street Shuffle' by the top-selling UK band, 10cc.
- In the Stan Ridgway song "I Wanna Be a Boss", the narrator refers to himself as planning to be more famous than Hughes, including references to growing a long beard and watching Ice Station Zebra in the nude.
- No time of birth is listed. Record nr. 234358, of December 29, 1941, filed January 5, 1942, Bureau of Vital Statistics of Texas Department of Health.
- The handwriting of the baptismal record is a rather trembling one. The clerk was an aged person and there is a chance that, supposedly being hard of hearing, they misheard "December 24" as "September 24" instead. This is speculative.
- Simkin, John. "Howard Hughes". Spartacus Educational. Retrieved: June 9, 2013.
- Consumer Price Index (estimate) 1800–2014. Federal Reserve Bank of Minneapolis. Retrieved February 27, 2014.
- Klepper and Gunther 1996, p. xiii.
- "51 Heroes of Aviation." Flying magazine. Retrieved: December 27, 2014.
- Barlett and Steele 2004, p. 15.
- "Howard Hughes." MSN Encarta online, October 21, 2009. Retrieved: January 5, 2008.
- http://users.tellurian.com/gjurrens/famous_hams.html Archived May 19, 2014 at the Wayback Machine
- "Howard Hughes." U.S. Centennial of Flight Commission, 2003. Retrieved: January 5, 2008.
- "Howard Hughes." about.com. Retrieved: January 5, 2008.
- "Golf's Bizarre Billionaire." golfonline.com. Retrieved: September 4, 2007.
- Barkow 1986, p. 13.
- Lasky 1989, p. 229.
- Onkst, David H. "Howard R. Hughes, Jr. – The Record Setter." U.S. Centennial of Flight Commission, 2003. Retrieved: January 5, 2008.
- "Aviator Howard Hughes H-1 Racer History." wrightools.com. Retrieved: January 5, 2008.
- "A Rich Young Texan with a Poet's Face Gets Hero's Welcome on World Flight." Life , July 25, 1938, pp. 9–11, 14. Retrieved: October 14, 2012.
- Rumerman, Judy. "Hughes Aircraft." centennialofflight.net, 2003. Retrieved: August 5, 2008.
- "Aircraft Ha to Hy." Aerofiles. Retrieved: July 31, 2011.
- Parker 2013, pp. 49–51
- "Hughes: Las Vegas." aviatorhowardhughes.com. Retrieved: July 31, 2011.
- Brown and Broeske 1996
- "Crash of the XF-11." check-six.com. Retrieved: January 5, 2008.
- Parker 2013, pp. 50-51.
- Barlett and Steele 2004, p. 140.
- "William Durkin, Howard Hughes crash rescuer, dies." Nation SunJournal, May 1, 2006. Retrieved: July 4, 2013.
- "Howard Hughes: XF-11." UNLV Libraries' Howard Hughes Collection. Retrieved: January 5, 2008.
- "William Durkin; rescued Howard Hughes in crash." Boston.com, May 2, 2006. Retrieved: January 17, 2012.
- "Hughes Designs Hospital Bed." Associated Press wire article, August 14, 1946.
- Barlett and Steele 2004, p. 143.
- Schwartz, Bill, dir. Howard Hughes – The Real Aviator (DVD). Los Angeles, California: Shout! Factory, 2004.
- Parker 2013, pp. 49-58.
- Herman 2012, pp. 277–280.
- "Largest Plane in the World." Aerospaceweb.org . Retrieved: March 18, 2009.
- Parker, Dana T. Building Victory: Aircraft Manufacturing in the Los Angeles Area in World War II, pp. 58, Cypress, CA, 2013.
- "Spruce Goose." Evergreen Aviation and Space Museum. Retrieved: December 14, 2011.
- http://www.departedflights.com January 15, 1978 Hughes Airwest route map
- http://www.departedflights.com September 1, 1980 Hughes Airwest system timetable
- Tierney and Herskowitz 1978, p. 97.
- "Lord Inchcape's Yacht Bought By American." The Straits Times (Singapore Government), December 21, 1933. Retrieved: September 23, 2014.
- Wisner, Bill. "The Golden Age of Yachts." Motor Boating, December 1975. Retrieved: September 23, 2014.
- "Howard Hughes' auto kills man in Hollywood." Chicago Tribune, July 12, 1936. Retrieved: December 13, 2009.
- "Sportsman Arrested After Traffic Death." Los Angeles Times, July 13, 1936. Retrieved: December 13, 2009.
- "Howard Hughes facing hearing in auto death." Chicago Tribune, July 12, 1936. Retrieved: December 13, 2009.
- "Millionaire Flyer and Society Girl testify at Inquest." Los Angeles Times, July 13, 1936. Retrieved: December 13, 2009.
- The Delta Democrat-Times (Greenville, Mississippi), September 29, 1946, p.4.
- "Interview with Louella Parsons." Waterloo Daily Courier (Waterloo, Iowa), October 12, 1947, p. 19.
- Anderson, Jack with Les Whitten. "Hughes and Jean Peters." The Gadsden Times, April 13, 1976, p. 4.
- Weaver 2004, p. 9.
- Brown and Broeske 1996, p. 34.
- "Dr. Verne Mason. Miami Physician. Howard Hughes aide dies. Also treated Pershing." The New York Times, November 17, 1965.
- "2007 Annual Report". Howard Hughes Medical Institute. Retrieved: March 13, 2010.
- "Records of the Watergate Special Prosecution Force." archives.gov. Retrieved: February 25, 2012.
- "Campaign Contributions Task Force #804 - Hughes/Rebozo Investigation." archives.gov. Retrieved: February 25, 2012.
- "Hughes Nixon and the C.I.A." Playboy Magazine, September 1976.
- Bellett 1995, pp. 32, 36, 160.
- Stahl, Lesley. "Watergate: 'Aviator' Connection?, Lesley Stahl Talks To Watergate Investigator About Motive For Break-In." CBS News. Retrieved: January 5, 2008.
- Burleson 1997, p. 33.
- Burleson 1997, pp. 157–158.
- TYCOONS: The Secret Life of Howard Hughes in Time, December 13, 1976
- "Ice Station Zebra" in New DVDs by Dave Kehr, The New York Times, January 11, 2005, retrieved, November 8, 2013
- Tolces, Roger. "Eye-witness report." bugsweeps.com. Retrieved: November 8, 2013.
- "News." Vancourier.com. Retrieved: March 17, 2009.
- Levitan, Corey. "Top 10 Scandals: Gritty City." Las Vegas Review-Journal. Retrieved: March 3, 2008.
- "Howard Hughes." Las Vegas Review-Journal, September 12, 1999.
- "Las Vegas." National Geographic, December 1996.
- Thomas 1987, p. 41.
- "The Keepers of the King." Time. Retrieved: January 5, 2008.
- Brown and Broeske 1996, p. 341.
- Vartabedian, Ralph. "Howard Hughes and the atomic bomb in middle of Nevada." latimes, June 28, 2009. Retrieved: July 25, 2009.
- Carlson, Michael. "Obituary: Robert Maheu: FBI agent and CIA fixer who became Howard Hughes's bagman." The Guardian, August 20, 2008, p. 33.
- Mallin, Jay. The Great Managua Earthquake
- "Howard Hughes: A Chronology." Channel 4. Retrieved: January 5, 2008.
- Howard Hughes Breaks His Silence. History.com
- Irving 1999, pp. 3–309.
- Lisheron, Mark. "Obituary for Lex Dale Owens, owner of Air Ambulance, Inc." Statesman.com, January 3, 2009. Retrieved: March 17, 2009.
- Hack 2002, pp. 16–18.
- "Howard Hughes Revealed". hulu.com, via National Geographic Channel, Inside (series), Season 7, episode 2. Retrieved: September 24, 2009.
- "Howard Hughes' Doctor Gives a Chilling Description of His Strange Patient's Final Hours" "People.com", July 30, 1979. Retrieved: January 18, 2015.
- Shannon, Jeff. "Melvin and Howard (1980) – Movie Preview." RopeofSilicon, 2008. Retrieved: August 5, 2008.
- "Howard Hughes Documentary." Amazon. Retrieved: August 22, 2011.
- "Howard Hughes: The Real Aviator." Amazon. Retrieved: August 22, 2011.
- "The American Aviator: The Howard Hughes Story." Vision Films. Retrieved: August 22, 2011.
- "New L.A. Noire Screens from the "Nichsolson Electroplating" Arson Case." Rockstargames.com, June 9, 2011. Retrieved: January 5, 2012.
- Barkow, Al. Gettin' to the Dance Floor: An Oral History of American Golf. Short Hills, New Jersey: Burford Books, 1986. ISBN 1-58080-043-2.
- Barton, Charles. Howard Hughes and his Flying Boat. Fallbrook, CA: Aero Publishers, 1982. Republished in 1998, Vienna, VA: Charles Barton, Inc. ISBN 0-9663175-0-5.
- Barlett, Donald L. and James B. Steele. Empire: The Life, Legend and Madness of Howard Hughes. New York: W.W. Norton & Company, 1979. ISBN 0-393-07513-3, republished in 2004 as Howard Hughes: His Life and Madness.
- Bellett, Gerald. Age of Secrets: The Conspiracy that Toppled Richard Nixon and the Hidden Death of Howard Hughes. Stillwater, Minnesota: Voyageur Press, 1995. ISBN 0-921842-42-2.
- Brown, Peter Harry and Pat H. Broeske. Howard Hughes: The Untold Story. New York: Penguin Books, 1996. ISBN 0-525-93785-4.
- Burleson, Clyde W. The Jennifer Project. College Station, Texas: Texas A&M University Press, 1997. ISBN 0-89096-764-4.
- Dietrich, Noah and Bob Thomas. Howard: The Amazing Mr. Hughes. New York: Fawcett Publications, 1972. ISBN 978-0-04-490256-0.
- Drosnin, Michael. Citizen Hughes: In his Own Words, How Howard Hughes Tried to Buy America. Portland, Oregon: Broadway Books, 2004. ISBN 0-7679-1934-3.
- Hack, Richard. Hughes: The Private Diaries, Memos and Letters: The Definitive Biography of the First American Billionaire. Beverly Hills, California: New Millennium Press, 2002. ISBN 1-893224-64-3.
- Herman, Arthur. Freedom's Forge: How American Business Produced Victory in World War II. New York: Random House, 2012. ISBN 978-1-4000-6964-4.
- Higham, Charles. Howard Hughes: The Secret Life, 1993.
- Irving, Clifford. The Hoax. New York: E. Reads Ltd., 1999. ISBN 978-0-7592-3868-8.
- Klepper, Michael and Michael Gunther. The Wealthy 100: From Benjamin Franklin to Bill Gates—A Ranking of the Richest Americans, Past and Present. Secaucus, New Jersey: Carol Publishing Group, 1996. ISBN 978-0-8065-1800-8
- Marrett, George J. Howard Hughes: Aviator. Annapolis, Maryland: Naval Institute Press, 2004. ISBN 1-59114-510-4.
- Kistler, Ron. I Caught Flies for Howard Hughes. Chicago: Playboy Press, 1976. ISBN 0-87223-447-9.
- Lasky, Betty. RKO: The Biggest Little Major of Them All, 2d ed . Santa Monica, California: Roundtable, 1989. ISBN 0-915677-41-5.
- Maheu, Robert and Richard Hack. Next to Hughes: Behind the Power and Tragic Downfall of Howard Hughes by his Closest Adviser. New York: Harper Collins, 1992. ISBN 0-06-016505-7.
- Moore, Terry. The Beauty and the Billionaire. New York: Pocket Books, 1984. ISBN 0-671-50080-5.
- Moore, Terry and Jerry Rivers. The Passions of Howard Hughes. Los Angeles: General Publishing Group, 1996. ISBN 1-881649-88-1.
- Parker, Dana T. Building Victory: Aircraft Manufacturing in the Los Angeles Area in World War II, Cypress, California: Dana T. Parker Books, 2013. ISBN 978-0-98979-060-4.
- Phelan, James. Howard Hughes: The Hidden Years. New York, Random House, 1976. ISBN 0-394-41042-4.
- Real, Jack. The Asylum of Howard Hughes. Philadelphia: Xlibris Corporation, 2003. ISBN 1-4134-0875-3.
- Thomas, Bob. Liberace: The True Story. New York: St. Martin's Press, 1987. ISBN 0-312-01469-4.
- Tierney, Gene with Mickey Herskowitz. Self-Portrait. New York: Peter Wyden, 1979. lSBN 0-883261-52-9.
- Weaver, Tom. Science Fiction and Fantasy Film Flashbacks: Conversations with 24 Actors, Writers, Producers and Directors from the Golden Age. New York: McFarland & Company, 2004. ISBN 0-7864-2070-7.
- Photograph collections related to Hughes: Houston Public Library; University of Nevada, Las Vegas; Evergreen Aviation and Space Museum; Charles Barton, Inc.
- Howard Hughes at the Internet Movie Database
- AZORIAN The Raising of the K-129 / 2009 – 2 Part TV Documentary / Michael White Films Vienna
- Welcome Home Howard: Collection of photographs kept by UNLV
- A history of the remarkable achievements of Howard Hughes