The Howard Hughes Professional and Aeronautical Photographs contain black-and-white photographs of businessman and entrepreneur Howard Hughes and his companies from 1916 to 1997. The photographs primarily depict Hughes alongside his aircraft, including the XF-11 prototype reconnaissance plane and the HK-1 Hercules, better known as the "Spruce Goose" or "Flying Boat." The photographs also cover the companies owned by Hughes, including Hughes Tool Company, Hughes Aircraft Company, Hughes Electronics Corporation, and RKO Pictures.

Oral history interview with Howard Heckethorn conducted by Richard Eitland on February 15, 1979 for the Ralph Roske Oral History Project on Early Las Vegas. Mr. Heckethorn describes going to school in the early days of Las Vegas, Nevada. He also talks about many notable teachers he had, as well as the development of the Las Vegas area. Heckethorn also discusses his arrival to Las Vegas, Nevada in 1930, and recalls the Old Mormon Fort, El Rancho, The Last Frontier, and the tourism that gambling brought to the city. Heckethorn discusses the 1960s, and the impact Howard Hughes had in the development of hotels and casinos.