The Anthony M. Valentino Erotica Collection (1950s-1990s) contains homoerotic drawings, stories, photographs, ephemera, and magazine articles collected and created by Valentino. This collection provides insight into gay erotica and pornography dating from the mid- to late- twentieth century.

The Credit Professionals of Las Vegas Records (1941-1999) include information about the organization and its two predecessors, the Credit Women's Club of Las Vegas, Nevada and the Credit Women's Breakfast Club of Las Vegas, Nevada. The collection includes scrapbooks, procedure manuals from the local and international division of the organization, awards received by the local division, and regional and local newsletters.

The Lois Sagel Papers on Nevada Wilderness Preservation (1989-1995) consist of the papers of Lois Sagel, an environmentalist and advocate for the preservation of Nevada’s wilderness. The collection primarily documents the campaigns surrounding the efforts to expand Red Rock Canyon National Conservation Area (1994) as well as to designate the Spring Mountains National Recreation Area (1993). Additionally, it contains information on minor land exchanges and the Question 5/S.B. 189 bond issue to fund state parks (considered in 1989 and 1990). Most of the collection is comprised of newspaper clippings, correspondence, memoranda, photographs, and photo slides.

The Desert Fishes Council Records (1969-1988) consist of resolutions, meeting minutes, symposium programs, agendas, and press releases of the Desert Fishes Council (DFC). The organization is devoted to the study and preservation of Southwestern desert fishes, notably the desert pupfish. The DFC records reflect efforts to bring the plight of desert fishes to the attention of academics and the public as well as highlight the worth of desert lands within the American environmental movement.

The Las Vegas Real Estate Brochures Collection (1990-2010) is comprised of real estate brochures, pamphlets, folders, and fliers on housing developments in Las Vegas, Nevada. Materials include price sheets, photographs, and newspaper clippings related to the development of communities throughout the city.

The Hal Belfer Papers chronicle the professional career of producer, choreographer, and writer Harold (Hal) Belfer (1935-2004) and consist of general materials regarding his work in Hollywood, California and Las Vegas, Nevada. One of the scrapbooks contains photographs of famous personalities from his early work in movies and theater. Also included are newspaper clippings, scripts, sheet music, arrangements, and photocopies of "Fabulous Las Vegas" and "Ken's Spotlight on Las Vegas," where Belfer had made notations.

The Larry Billman Papers (1961-1975) primarily reflect his work in the entertainment industry of Las Vegas, Nevada as a dancer, choreographer, and director. Materials include scripts, photographs, music scores, contracts, ephemera, and magazine and newspaper clippings. The collection also includes two scrapbooks and photographs of Tomoko (Katsuko) Billman performing in shows like "Holiday in Japan" at the New Frontier Hotel and Casino and "Rome Swings" at Caesars Palace in the late 1950s into the mid-1960s as well as photographs of Tomoko and other "Holiday in Japan" performers at various reunions.