The Betty Henderson Professional Papers (1963-1985) are comprised of materials produced by Betty Henderson in her capacity as a private music teacher in Las Vegas, Nevada and as a member of the Nevada Music Teachers Association (NMTA). The collection includes scrapbooks of concert programs and NMTA events, materials from Henderson's experiences in Europe as a People-to-People ambassador with the Music Teachers National Association, and recordings on reel-to-reel tapes of concerts Henderson performed in or judged.

The Apolonio Sauceda Scrapbooks (1973-2010) document Apolonio "Loney" Sauceda's acting career and his work with the Nevada Association for Latin Americans (NALA) in Las Vegas, Nevada. Two scrapbooks document Sauceda's career as an actor and contain photographs of Sauceda on set, at premieres, with other actors, and depict movie sets at well-known Las Vegas hotels and casinos in the 1980s and 1990s. Newspaper clippings accompany many of the photographs and provide details about locations, major actors, or the producers for each film. The third scrapbook is compiled of newspaper clippings that document the local Las Vegas, Nevada Latinx community and NALA events in the 1970s, ranging from political activism, labor strikes, beauty pageants, and religious gatherings.

The Albert S. Henderson Photograph Collection (1860s-1959) primarily contains black-and-white photographic prints of Albert S. Henderson and his family. Also included in the collection are photographic prints of Henderson during his tenure as a Nevada legislator and district judge. Other materials include postcards, negatives, and a tintype.

The Stella Champo Iaconis Collection of Helldorado Photographs (approximately 1934-1940) contains four black-and-white photographic prints of the Helldorado Days celebration held in Las Vegas, Nevada. Images depict people celebrating at the Apache Bar in downtown Las Vegas.