The Harold Stocker Photographs depict Harold Stocker and his family from 1850 to 1980. Materials include photographs of Harold Stocker, his parents, his siblings, and his extended family. Materials also include photographs of Harold Stocker's business interests such as the Northern Club in Las Vegas, Nevada, the Nevada Silica Sand Company in Overton, Nevada, and the Chief Hotel Court on Fremont Street in Las Vegas, Nevada. The collection also contains photographs of Stocker participating in Republican Party events in Nevada.

The Richard B. Taylor Papers (1920-1993) document Richard Taylor's career and interests as a longtime Las Vegas, Nevada businessman and local historian, including his work as an executive at the Hacienda Hotel and Casino. The materials also include maps, development plans, and local publications for the Nevada communities of Laughlin and Mount Charleston, as well as publicity and promotional materials for these projects. As an amateur historian, Taylor also collected information on Las Vegas, Laughlin, and Mount Charleston.

The Del Webb Corporation Photograph Collection (approximately 1957 to 1988) consists of black-and-white photographic prints, black-and-white oversize reprints, negatives, and color slides focusing on the Mint Hotel and Casino in downtown Las Vegas, Nevada. Images depict the construction of a twenty-six story high-rise addition to the property, its grand opening and anniversary celebrations, the Mint 400 Off-Road race festivities, interior shots of the casino floor, restaurants and lounges, and a salon. Also included are exterior images of properties on Fremont Street considered to be competitors of the Mint, advertisements and billboards, and photographs of Del E. Webb and associates.

The Maurine and Fred Wilson and Dr. William S. Park Audiovisual Collection (approximately 1900s-1970s) consist of audiovisual material created by the Wilson and Park families. The materials depict the Park homes in Las Vegas, Nevada; Park and Wilson family members; outdoor activities and vacation trips to California, Colorado, and Mexico. The collection also documents early views of the Kiel Ranch in Las Vegas, Nevada, community parades and events, and early views of Las Vegas in the 1920s.

The Gary W. Royer Collection on Gaming (dating from 1950 to 2009, with the bulk of the materials dating from 1970 to 1995) contains research files, legal files, reports, and manuals about gaming written and collected by Gary W. Royer. The collection includes research and regulatory files collected by Royer while he worked at the Nevada Gaming Control Board. These files primarily document the legislation and regulation of gaming in Nevada, but include information on other states in the US and some international locations. Regulatory files include statutes, codes, regulations, revenue reports, Nevada Gaming Control Board and Nevada Gaming Commission meeting minutes, and tribal-state gaming compacts. Also included are research files about casino, racetrack, and sports betting facilities that include data on organizations, monthly revenue reports, occupancy rates, management and operational control manuals, annual reports, policy and procedure manuals, and profile sheets collected for consulting purposes in Royer’s role as President of Casino Control Corporation (CCC), a private gaming consulting firm. Also included are subject and research files, vendor advertisements, catalogs, and reports; gaming industry publications; conference materials; audit guides; and a comprehensive collection of newspaper articles that document the US gaming industry in the second half of the twentieth century.