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 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 George Kelly Ryan Photograph Collection (1929) depicts waterways in Southern Nevada and Northern Arizona. The collection consists of eight photographic prints and two photographic negatives depicting Saint Thomas, Black Canyon, Boulder Canyon, and the Colorado River.

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 William J. Moore Jr. Photograph Collection (approximately 1942-1960) consists of black-and-white photographic prints, negatives, and one oversize image depicting William "Bill" J. Moore Jr.'s career as a casino operator in Las Vegas, Nevada. Images include events at the Moore family home and the Hotel Last Frontier. Also included are images of Moore with politicians, casino operators, and other notable figures in Las Vegas.