The William S. Park Photograph Collection (approximately 1870-1960) consists of black-and-white photographic prints and negatives of the families of William S. Park, John S. Park, and John William Park, as well as photographs of the Thomas children, half-siblings of John William Park's daughter Virginia. The majority of the images show locations in Las Vegas, Nevada with a smaller number taken in Kentucky, Oklahoma, Colorado, and California. Also included are three photograph albums of William S. and John William Park as children.

The Donna Andress Papers (1890-2021) contain the personal papers of Donna Andress, a longtime resident and activist in Southern Nevada. Materials include correspondence and newspaper clippings from the Nevada Welfare Committee, on which Andress served as chairperson during the 1970s, in addition to pamphlets and newsletters from various Nevada historical organizations and committees. The papers reflect her involvement with community organizations throughout Southern Nevada.

The Marjorie Barrick Museum of Natural History Records (1939-2003) detail the creation of the Marjorie Barrick Museum of Natural History in Las Vegas, Nevada founded by Richard H. Brooks, a professor of anthropology at the University of Nevada, Las Vegas. The records are comprised primarily of correspondence between Brooks and members of the Southwestern Anthropological Association (SWAA), the Society for California Archaeology (SCA), and the meetings and exhibitions of the Nevada State Museum. The collection also contains financial statements that describe expenses for supplies, research, and excursions. Also included are anthropological, archaeological, and historical publications, as well as administrative files and Richard Brooks' correspondence with the Nevada Archaeological Survey (NAS). The collection also includes architectural floor plans for the Classroom and Physical Education, the original space that was converted into the museum in 1980, and plans for the redesign of the Barrick Museum and the Harry Reid Environmental Research Center addition.

The Blue Diamond Mine Corporate Records (1918-2005) consist of operational and organization records of the gypsum mining and milling operations located in southwest Clark County, Nevada. Materials include operational records related to individual boring sites at the mine; milling operations and statistics; and equipment operations and statistics, including maps, field notebooks, and photographs. There are also daily, weekly, and monthly organizational records related to employee work schedules and safety reports for the mining operations, including accident reports and a safety education training program.

This collection is comprised of publicity and promotional materials documenting the Caesar's Palace Hotel and Casino Resort and the Circus Circus Hotel and Casino Resort. Both resorts were a result of hotel and casino developer Jay Sarno. There is a small amount of material on Sarno in the collection such as newspaper clippings, a press release, and a copy of Sarno's FBI investigation file. The collection includes property records, magazine and newspaper clippings, informational brochures from the two properties, press kits, and a small amount of correspondence. It also includes a prospectus and stock offerings for Sarno's never-realized Grandissimo Hotel and Casino resort that would have been built on Interstate 15 to the west of the Las Vegas Strip.

Collection contains nineteen real estate appraisal reports created by John R. Moser from Las Vegas and rural Southern Nevada (Lincoln and Nye counties) from approximately 1957 to 1972. The reports contain information on the market values of the properties and contextual information explaining the appraisals. This collection also contains photographs and photographic negatives depicting properties, and photographic slides of desert flora and landscapes around Nevada and Idaho such as Groom Mountain Range, White Bird Canyon, Salmon River Valley, Clover Valley, and Ruby Mountains.

The Nevada Federation of Women's Clubs (NFWC) Records date from 1907 until 1999 and document the administration, activities, and publications of the NFWC. During the twentieth century, the NFWC included member clubs from throughout the state of Nevada including the Mesquite Club in Las Vegas, the Reno Women's Civic Club, and the Lamoille Women's Club. The collection includes meeting minutes and agendas, correspondence, publications, reports, and newspaper clippings.