The Helen J. Stewart Photographs depict the Stewart Family from approximately 1860 to 1950. The photographs primarily depict Helen J. Stewart and her children as well as the Stewart Ranch (also know as the Las Vegas Ranch) in Southern Nevada. The photographs include the early Las Vegas, Nevada town site, landscapes of Southern Nevada and the American Southwest, mines and mining camps, railroads and railroad workers, the Las Vegas Fort (also known as the Old Mormon Fort), hotels and early businesses in Las Vegas, Native Americans and Native American artifacts, and postcards.

The Shar Rednour and Jackie Strano Papers on S.I.R. Productions (1981-2015) contain the personal and professional papers of Rednour and Strano, two lesbian filmmakers, writers, and activists from the 1990s until the 2010s. The collection contains the personal papers of both Rednour and Strano, including correspondence between the pair before they married in 2006. The collection also contains the professional files of Rednour and Strano in their capacity as creators of SIR (Sex, Indulgence, and Rock and Roll) Video in 1998. Materials include financial documents, correspondence, scripts and editing notes, crew information, publicity photographs, and direct order forms for S.I.R. Productions. In addition to records on SIR Video, the collection also contains a number of sex-positive and lesbian, gay, bisexual, transgender, and queer (LGBTQ) publications from the LGBTQ scene in San Francisco, California during the 1990s.

The Six Companies, Inc. Hoover Dam Photograph Collection (1931-1935), consists of approximately 400 black-and-white photographic prints contained in two photograph albums and an additional twenty-one loose black-and-white photographic prints with ten corresponding photographic negatives.