Throughout his career, Conrad Hilton supported a variety of causes, particularly those involving the nuns that had helped educate him in his native New Mexico. He established the Conrad N. Hilton Foundation in 1944, and made a total of $7.6 million of gifts before his death.

In 1947, Barron Hilton married Marilyn June Hawley; they remained married until she died in 2004. They had eight children: William Barron Hilton, Jr.; Hawley Anne Hilton; Stephen Michael Hilton; David Alan Hilton; Sharon Constance Hilton; Richard Howard Hilton; Daniel Kevin Hilton; and Ronald Jeffrey Hilton; William Barron Hilton, Jr. was born in 1948 and Ronald Jeffrey Hilton was born in 1963. Barron Hilton had 15 grandchildren, including Richard Hilton’s daughters Paris Hilton and Nicky Hilton Rothschild, and four great-grandchildren.

Before joining his father in the hotel industry, Barron Hilton honed his business skills in a variety of entrepreneurial ventures. He acquired the Los Angeles-area distributorship of Vita-Pakt Citrus Products, co-founded MacDonald Oil Company, and founded Air Finance Corporation, one of the nation’s first aircraft leasing businesses. In 1954, Barron was elected vice president of Hilton Hotels, running the company’s franchise operations and creating the Carte Blanche credit card as a service to the company’s customers.

In 1959, Lamar Hunt offered Hilton the Los Angeles franchise in the new American Football League (AFL). Hilton named his team the Chargers, but denied that he did it to create synergy with his new credit card business. A fan had nominated the name in a contest, and Hilton selected it because of the bugle call and “Charge!” cheer that was often sounded during USC football games at the Los Angeles Memorial Coliseum. The Chargers began playing at the Coliseum in 1960, but in spite of winning the Western Division, the club found it difficult to compete for fans with the Rams of the National Football League (NFL) in their own stadium. Hilton moved the team to San Diego in time for the 1961 season and played in tiny Balboa Stadium, which the city had expanded to 30,000 seats.

Hilton began working with the local newspapers to engender support for construction of a state-of-the-art stadium. Encouraged by San Diego Union sports editor Jack Murphy, among others, a referendum was passed in 1965, and the Chargers began play in the new San Diego Stadium in 1967. With the availability of a new stadium, the city received a baseball expansion franchise from the National League, and the San Diego Padres began play in 1969. It was named Jack Murphy Stadium after Murphy’s death in 1980, and is now known as SDCCU Stadium.

Hilton also served as AFL president in 1965, and helped forge the merger between the AFL and the NFL, announced in 1966, which created the Super Bowl. In all, the Chargers won five divisional titles, and one AFL Championship, during Hilton’s six years at the helm of the club. In 1966, directors of Hilton Hotels Corporation asked Hilton to succeed his father as president and chief executive officer of the company, provided that he drop his football responsibilities. He sold his majority interest in the team for $10 million—a record for any professional sports franchise at the time—after an initial investment in a franchise fee of just $25,000.

Las Vegas would also become the self-proclaimed “Entertainment Capital of the World”. Of all the headliners to perform at the Hilton or the Flamingo, the most successful and spectacular was Elvis Presley. After a decade in the movies, he began performing in front of live audiences again in 1969 at the opening of the International (a few years later renamed the Las Vegas Hilton). He went on to star at the Las Vegas Hilton two months a year—performing two shows a night, seven nights a week—until shortly before his death in 1977. Presley set a world entertainment record at the Las Vegas Hilton for selling out 837 consecutive concerts.

Once charged with the responsibility for Hilton Hotels Corporation, Barron Hilton soon showed his father’s genius for cost controls and real estate deals. In 1970, he convinced the board to expand into Las Vegas by purchasing the International and the Flamingo from financier Kirk Kerkorian. Hilton Hotels thus became the first company listed on the New York Stock Exchange to venture into the gaming market. Renamed the Las Vegas Hilton and the Flamingo Hilton, the two resorts tapped a new source of income from gambling in a state where it had been legal since 1931. Barron could also see that Las Vegas would become a leading convention destination, capitalizing on the company’s strength in that important market segment.

Hilton was a member of a duck club on Venice Island in the Sacramento – San Joaquin River Delta near Stockton in Northern California. Every year he put on a large Fourth of July fireworks display, attracting thousands of boaters to watch it. Hilton and several friends purchased the Flying-M Ranch in Lyon County, Nevada in the mid-1960s, and he bought the others out in 1972.

On the hotel front, in 1975, Hilton sold a 50 percent interest in six of the company’s largest hotels to Prudential Insurance Company for $83 million. He took a leaseback to manage the properties, collecting lucrative management fees and a percentage of their gross profits. Perhaps more importantly, the sale proved that these hotels were worth double their book value, demonstrating the underlying value of the company’s real estate holdings. The transaction also enhanced the value of the stock held by every HHC shareholder. Hilton used the proceeds to pay down high interest debt, and repurchase 20 percent of the company’s stock—all at market rate—which was still trading well below the company’s book value.

Hilton continued to expand the domestic hotel chain through franchising and the selective acquisition of management contracts and hotels in emerging markets. In 1977, he completed a hotel purchase that his father had initiated 28 years earlier. When Conrad Hilton bought the Waldorf-Astoria in 1949, he actually bought the hotel’s operating company and its 30-year lease to run the hotel. The building, and the land under it, were still owned by the realty arm of the Penn Central Railroad. Knowing that the lease would expire in 1979, Hilton deftly negotiated to buy the hotel and real estate from the railroad. The landmark property, whose current value is estimated around $1 billion, was purchased by Hilton for just $35 million.

In contrast to his gamble on gaming, Hilton earned a well-deserved reputation as a financial conservative. After seeing his father struggle to overcome the effects of the American Great Depression and World War II, he maintained the strongest balance sheet in the industry. Throughout his 30 years as CEO, he carried a low debt-to-capital ratio and a high credit rating, enabling him to gobble up such properties as Bally’s Reno (formerly the MGM Grand Hotel and Casino-Reno). The 2,000-room resort was opened in 1978 for $230 million, and purchased by Hilton in 1992 for $88 million. With strong cash flow and plenty of liquid investments on hand, he was able to weather the inevitable recessions and business interruptions that struck the industry from the mid-’60s to the mid-’90s.

In 1979, Barron Hilton’s father, Conrad Hilton, died at age 91. He left 13.5 million shares of Hilton Hotels Corporation stock—97 percent of his estate—to the Conrad N. Hilton Foundation, a humanitarian charity which he had established in 1944.

From 1980 to 2009, he also hosted the Barron Hilton Cup, a unique, worldwide glider competition. Pilots who flew the longest triangular flights during each two-year period in six regions of the world earned participation in a weeklong soaring camp at his Flying M Ranch. Co-founder Helmut Reichmann, Germany’s three-time world soaring champion, devised a handicap system that enabled pilots flying older gliders to compete with elite pilots in high-performance aircraft of the latest design. Once at the Flying M, they flew recreationally alongside world champions and celebrities invited to attend by Hilton. Beginning in 1996 with its predecessors, the European Aeronautic Defence and Space Co., EADS, had served as a partner in the event.

In his will, Conrad also gave Barron the right to purchase those shares in order to maintain family control of the company, but the foundation challenged the option in probate court. It took an entire decade to resolve the issue. Hilton’s right to exercise his option was upheld in an appeals court ruling in March 1988, giving him voting power over roughly 34 percent of the company’s outstanding shares. Conrad’s bequest of stock was worth $160 million when he died in 1979. Thanks to his son’s successful management of the Hilton Hotels Corporation, those shares were worth $654 million when the settlement was reached late in 1988. In a press statement issued after the favorable ruling, Hilton said it gave him “the opportunity to structure an arrangement whereby my father’s two objectives, retaining control of the stock in family hands, and benefiting charity through the Conrad N. Hilton Foundation, can both be achieved. I am confident that my father would be pleased with this accord.”

The settlement was finalized in 1989. Neither Hilton, nor the foundation, had to actually pay for the shares; they split them instead. Hilton received 4 million shares, the Conrad N. Hilton Foundation received 3.5 million shares, and the remaining 6 million shares were placed in the W. Barron Hilton Charitable remainder unitrust, of which Barron was the executor. He received 60 percent of the unitrust income, and the foundation 40 percent, during his lifetime, then the fund would transfer to the foundation.

In the ’90s, he boldly backed the first attempts to capture one of the last great milestones in aviation—flying non-stop around the world in a balloon—with the Earthwinds Hilton and Global Hilton campaigns. While falling short of the ultimate goal, Hilton is credited with inspiring the efforts of those who achieved the feat. Bertrand Piccard and Brian Jones were the first to make a trans-global flight in 1999; Steve Fossett became the first to complete the flight solo in 2002.

Hilton continued as chairman of the board through the next decade as his hand-picked successor, Steve Bollenbach, dramatically expanded the company through a series of mergers and acquisitions. The advent of friendly capital markets in the late ’90s enabled him to acquire such popular brands as Embassy Suites, Doubletree, Hampton Inn, Homewood Suites, Bally’s and Caesars. Then, in 2005, he reacquired Hilton International, 38 years after it had been sold to TWA. With the company now strategically complete, Bollenbach spun off the gaming business, which merged with Harrah’s in 2005 and was renamed Caesars Entertainment.

In the meantime, the hotel business continued to soar. With the best known and most respected name in the industry—and popular domestic brands ripe for expansion overseas—Hilton Hotels Corporation proved to be irresistible to The Blackstone Group. In 2007, the private equity firm purchased Hilton Hotels Corporation, consisting of 2,800 hotels with 480,000 rooms in 76 countries and territories. Blackstone paid $47.50 per share, a 32 percent premium over the July 2 closing price. The $26 billion, all-cash transaction included $7.5 billion of debt.

On December 25, 2007, Hilton announced that he would follow in his father’s footsteps by leaving about 97 percent of his estate, estimated at that time to be $2.3 billion, to the Conrad N. Hilton Foundation. Included was an immediate pledge of $1.2 billion, the proceeds of the sale of Hilton Hotels Corporation and Harrah’s Entertainment Inc., which was placed in a charitable remainder unitrust that would be transferred to the foundation upon Hilton’s death at whatever value the trust was worth at that time. The remainder of the funds that constitute Hilton’s pledge of 97 percent of his estate will come from his personal assets, which were estimated at $1.1 billion at the time.

On Labor Day, 2007, Fossett took off from the Flying M Ranch and never returned, perishing in a crash in the Sierras. In spite of an intensive search, the wreckage wasn’t discovered until the following spring. The National Transportation Safety Board determined the probable cause(s) of this accident to be “the pilot’s inadvertent encounter with downdrafts that exceeded the climb capability of the airplane. Contributing to the accident were the downdrafts, high density altitude, and mountainous terrain.” Examination of the airframe and engine revealed no evidence of any malfunctions or failures that would have prevented normal operation.

For his lifelong support of aviation, Hilton received the prestigious FAI Gold Air Medal from the Fédération Aéronautique Internationale in 2009, the same award bestowed upon some of his closest friends and personal heroes, like Yeager, Armstrong, Cernan, Jones, Fossett, and Lindbergh himself.

The Smithsonian National Air & Space Museum honored Hilton in 2010 by christening the Barron Hilton Pioneers of Flight Gallery. The redesigned exhibit recognizes aviators like Lindbergh, Amelia Earhart and the Tuskeegee Airmen. The gallery includes an early childhood education component funded by the Hilton Foundation to help youngsters catch the same enthusiasm for aviation that he discovered as a child when Lindbergh and Earhart were making headlines.

In addition to his single-engine and multi-engine ratings, Hilton eventually earned glider, lighter than air (balloons) and helicopter ratings as well. He maintained a small fleet of aircraft at his Flying M Ranch east of the sierras in northern Nevada that includes sailplanes, tow planes, aerobatic aircraft, hot air balloons and classic, restored biplanes. He flew them all until he retired from the cockpit in 2012 at age 84.

In 2012, Barron was inducted into the International Air & Space Hall of Fame at the San Diego Air & Space Museum.

In 2012, Hilton was also inducted into the International Air & Space Hall of Fame in San Diego, and was hailed as the “patron saint of sport aviation.”

With the death of the Bills’ Ralph Wilson in 2014, Hilton became the last surviving member of the Foolish Club—the nickname the original AFL owners gave each other, as they absorbed the start-up expenses and player salaries necessary to compete with the established NFL.

Hilton died of natural causes at his home in Los Angeles on September 19, 2019.