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.

The Wilbur and Toni Clark Papers date from 1944 to 1991, with the bulk from 1953 to 1963 and document the lives of Wilbur and Toni Clark in Las Vegas, Nevada and the development of the Desert Inn Hotel and Casino. The collection includes correspondence from Wilbur Clark to those he identified as important individuals including government officials and celebrities. It also includes materials related to Clark’s plan of building luxury apartments near the Desert Inn, and newspaper clippings and scrapbooks about the Clarks and the Desert Inn. The collection contains some audiovisual materials including Wilbur and Toni Clark's home movies, news footage, and film footage of Las Vegas, Nevada and the Desert Inn.

The John Levy Lighting Productions, Inc. Records (approximately 1990-2022) contain correspondence, invoices, contracts, expense reports, newspaper and magazine clippings, photographs, slides, and digital files detailing the development of various projects primarily in Las Vegas, Nevada. The records also contain architectural lighting drawings, electrical schematics and design details, conceptual sketches, and artist renderings of projects in Las Vegas, throughout United States, and various international locations.