The Ida Brewington Pittman Photographs contain photographs of Ida Brewington Pittman and her husband, Nevada Governor Vail Pittman, from 1896 to 1976. The photographs primarily depict Governor Pittman at political events, parades, celebrations, and events. The photographs include Governor Pittman meeting with politicians like President Harry S. Truman, U.S. Senator from Nevada Pat McCarran, Las Vegas, Nevada mayor Ernie Cragin, California Governor Earl Warren, Utah Governor J. Bracken Lee, Oregon Governor Earl Snell, and Wyoming Governor Lester C. Hunt. The photographs also depict the Pittman and Brewington families, the Governor’s Mansion in Carson City, Nevada, the Pittman home in Ely, Nevada, and the Pittmans travelling in other countries.

The Colorado River Commission of Nevada Reference Library Collection (1922-2000) documents the history of the Colorado River Commission (CRC) and is predominately comprised of books, briefs, memoranda, motions, exhibits, and other documents pertaining to the Arizona v. California litigation occurring between 1931 and 2000. The collection also contains meeting minutes, correspondence, budgets, reports, and other work files relating to the CRC. The CRC, located in Las Vegas, Nevada, is responsible for managing and protecting Nevada’s Colorado River water and power resources.

The Spencer and Georgia Butterfield Papers (1890s-1978) consist primarily of photographs and scrapbooks pertaining to Spencer and Georgia Butterfield, a prominent Las Vegas, Nevada couple involved in local business and civic activities. The collection also includes newspaper clippings of their social activities, correspondence, and assorted personal memorabilia.

The Historic American Buildings Survey of Kiel Ranch Photograph Collection contains 45 black-and-white photographs of the buildings on Kiel Ranch from 1988. The buildings documented by the collection are the park mansion, the adobe structure, an old house, the foreman's house, a shed referred to as the "Doll House," a brown house, a cinderblock house, a wooden duplex, and a livestock shed.

The Las Vegas High School architectural drawings include blueprints for various improvements, expansions, additions, and renovations performed for the Las Vegas, Nevada high school between 1929 and 1972. The architectural drawing sets include site plans, floor plans, elevations, sections, building component details, and structural drawings.