The Eugene Martin Christiansen Papers (dating from 1948 to 2017, with the bulk of the materials dating from 1975 to 2005) contain research files, reports, and presentations about gambling written and collected by gaming consultant Eugene Martin Christiansen. Most of the collection is comprised of research files and reports about legalized gambling, casinos, hotels, racetracks, and entertainment venues, including the economic impacts of legalized gaming, feasibility studies for opening new casinos and racetracks, popularity of off-track betting, horse and dog racing, table games, gambling addiction, gaming regulation, taxes, lotteries, and Native American gaming. The collection also includes research files covering state and municipal regulation of gaming, significant individuals in the gaming industry, prominent hotels and casinos, gaming research conferences, financial reports, and international regulation of gaming. The collection also contains a small amount of business records from Christiansen’s entertainment company Feature Film Finance & Production.

Collection is comprised of photographs of Las Vegas, Nevada community leaders Flora and Stuart Mason and three event programs from Temple Beth Sholom (Las Vegas, Nevada). Materials date from approximately 1965 to 2010.

The Nat Hart Professional Papers contain the business records, personal papers, and photographs of Las Vegas, Nevada chef and restaurateur Nat Hart, who served as the Corporate Vice-President of Food and Beverage for Caesars World in the 1970s and 1980s. Papers date from 1930 to 2000 and include restaurant training and service manuals, business proposals, architectural drawings, recipe cards, cookbooks, menu specifications, photographs, scrapbooks, awards, news releases, and correspondence.

The C. A. Earle Rinker Photograph Collection of Goldfield, Nevada (approximately 1900-1915) contains individual black-and-white photographic prints, photographic albums, black-and-white and tinted postcards, and photographic negatives that document the history of early twentieth century Goldfield, Nevada. The images include photographic prints of Goldfield and surrounding areas during its peak years of 1906-1910; postcards showing scenes of Goldfield, Tonopah, and other areas in central Nevada; and negatives that contain images of Rinker's family and homelife in Indiana and Illinois.

The Howard Hughes Public Relations Photograph Collection depicts the activities of businessman Howard Hughes from 1930 to 1950. The photographs primarily depict aircraft flown by Hughes or designed by the Hughes Aircraft Company, including the XF-11 reconnaissance plane, the HK-1 Hercules (or "Spruce Goose"), and the Hughes H-1 Racer. The photographs also depict celebrations following Hughes's circumnavigation flight in New York City, New York and Chicago, Illinois in 1938. Lastly, the photographs include Hughes testifying in front of the Senate Special Committee to Investigate the National Defense Program in 1947.

The Milton Norman Photograph Collection (1943-1970) consists of black-and-white photographic prints and negatives taken by City of Las Vegas Code Enforcement officer Milton Norman. The images were recorded as part of a survey of substandard residential dwellings built in the then racially segregated communities of the Westside and Vegas Heights in Las Vegas, Nevada.

The Elton and Madelaine Garrett Photograph and Architectural Drawing Collection contains photographic prints and architectural drawings of Boulder (Hoover) Dam; Las Vegas, Nevada; Boulder City, Nevada; and other locations in the American Southwest from approximately 1927 to 1990. The photographs primarily depict Hoover Dam's construction and areas around Hoover Dam, Las Vegas, and Boulder City during the 1930s and 1940s. The bulk of the architectural drawings and maps are projects and diagrams related to the planning and development of Boulder City, Nevada between 1943 and 1985.