The Harmon Family Papers consist of the political and personal correspondence of Las Vegas, Nevada pioneer Harley A. Harmon from 1910 to 1934, and his son, Harley E. Harmon, from 1950 to 1966. The collection also includes correspondence, personal papers, and photographs of Harley L. Harmon from approximately 1950 to 1999. Also included are family scrapbooks with wedding announcements, photographs, birthday cards, newspaper clippings, and other ephemera.

The Gene Hertzog Professional Papers (approximately 1930-2015) are comprised of photographs, slides, transparencies, publications, video cassettes, correspondence, and digital files spanning Gene Hertzog's working years with the United States Army, the Bureau of Reclamation, and as a freelance photographer and videographer based in Southern Nevada, New Mexico, and Washington state. The collection documents the complicated infrastructure required to supply water to the Las Vegas Valley and includes still and moving images of the Springs Preserve, Lake Mead National Recreation Area, the Colorado River, and the Columbia Basin. The majority of the collection comes from Hertzog's time as a regional photographer for the Bureau of Reclamation and offers a unique glimpse into the Bureau's work in Southern Nevada, the southwest, and the Pacific Northwest from the 1950s to the mid-1990s.

The Junior League of Las Vegas' Records on the Morelli House Preservation Project contains the records of the Junior League of Las Vegas and the organization's efforts to preserve the Morelli House in downtown Las Vegas, Nevada from 1997 to 2017. Records are comprised of various internal and external planning documents, research files, advertising and publicity, correspondence, grant files, and photographs. Also included in this collection are scans of original planning documents and drawings used by Las Vegas, Nevada architect, Hugh E. Taylor, during construction of the Morelli House in the 1950s.

The Elton and Madelaine Garrett Photograph and Architectural Drawing Collection contains photographic prints and architectural drawings of Boulder (Hoover) Dam; Las Vegas, Nevada; Boulder City, Nevada; and other locations in the American Southwest from approximately 1927 to 1990. The photographs primarily depict Hoover Dam's construction and areas around Hoover Dam, Las Vegas, and Boulder City during the 1930s and 1940s. The bulk of the architectural drawings and maps are projects and diagrams related to the planning and development of Boulder City, Nevada between 1943 and 1985.

The Pittman Family Photographs depict members of the Pittman and Brewington families in Nevada from 1903 to 1989. The photographs primarily depict Nevada Governor Vail Pittman and his wife Ida Louise “Liz” Brewington Pittman at political campaign and fundraising events, including the Helldorado Parade in Las Vegas, Nevada and at the Governor’s Mansion in Carson City, Nevada. The photographs also depict Governor Pittman with President Harry S. Truman, Jim Cashman, and family members. The photographs also include a group photograph of U.S. Senator Key Pittman with business executives representing the Union Pacific Railroad and the San Pedro Railroad. The collection also contains family photographs of Ann Brewington, Ida Brewington Pittman's sister, as well as a letter sent to Vail Pittman in 1903.