The Nan Doughty Photograph Collection (1870-1987) consists of approximately 960 black-and-white and color photographic prints, black-and-white photographic negatives, and black-and-white and color photographic slides, taken by Nanelia Doughty, family members, and friends.

The Von Tobel Family Papers (1905-1997) consist of photographs, correspondence, and financial reports pertaining to the early Las Vegas Von Tobel family and their businesses, which they operated in Las Vegas, Nevada. The collection also contains newspaper clippings covering the life of Edward Von Tobel Sr. and some of the operational business records of the Von Tobel Hardware Store No. 301.

The Howard Hughes Public Relations Reference Files (1931-1997) were compiled by Richard "Dick" Hannah, vice-president of the Los Angeles public relations firm Carl Byoir & Associates, which was hired to direct public relations for Hughes’ companies. The collection is primarily composed of newspaper clippings organized into reference files. A significant number of the files contain articles about Howard Hughes’ personal life, the operations of his companies, and legal and political disputes involving Hughes and his companies. The files also document a range of other subjects related to his business ventures, including aviation, aerospace, defense industries, motion picture studios, film stars, communism in Hollywood, and the House on Un-American Activities Committee (HUAC). Later in life Hughes became obsessed with how he was being portrayed in the media. In addition to collecting magazine articles, newspaper clippings, transcripts, screenplays, and books that referenced him. He also collected newspaper clippings about the activities of print media outlets, columnists, radio-television stations, current and former employees, and competitors. The collection also contains newspaper clippings about Watergate, organized crime, gambling, and Las Vegas and contains press releases, correspondence and records generated by Carl Byoir & Associates as well as Rosemont Enterprise, Inc.

The MacDonald Ranch Architectural Records contain master plans, architectural drawings, civil drawings, and landscape drawings primarily detailing the community development process of MacDonald Ranch, one of the oldest and most affluent master-planned communities in Clark County, Nevada between 1972 to 2007. Included are also drawings for MacDonald Highlands and Green Valley Ranch.

The Zelvin Lowman Papers (1938-2001) contain the papers of Assemblyman Zelvin "Zel" Lowman who served in the Nevada State Legislature from 1967 to 1977. Included are court records, publications, correspondence, reports, and newspaper clippings pertaining to his time in office. Subjects include the Clark County School District, school busing, water and air quality issues, capital punishment, medical malpractice, mental health legislation, and the Equal Rights Amendment (ERA). The 2018 addition includes newspaper clippings, awards, citations, school records, photographs, occasional cards, invitations, and extensive material on the Lowman's involvement with the Boy Scouts and Girl Scouts of America. Also included are books written by Zel Lowman about scouting and the Presbyterian Church.

The Jacob E. Von Tobel Photograph Collection contains black-and-white photographs of the pioneer Von Tobel family from 1900 to 1980. The collection includes photographs of the Von Tobel family, early Las Vegas, Nevada buildings and landmarks, and aerial photographs of Las Vegas and surrounding areas.

The Ham Family Photograph Collection contains five photographic albums primarily featuring images of the Ham family's travels throughout the western United States and Artemus W. Ham Jr. and Betty Ham Dokter during their childhood between approximately 1900-1949. Also included is one photograph used as a Christmas greeting for the Ham family from 1981. The photographs feature locations including Cedar Breaks National Monument, Utah; Grand Canyon, Arizona; and Yosemite National Park, California. The collection also contains photographs of the Ham family at Mormon sites throughout Utah. Lastly, there are postcards and photographs of locations throughout the United States, Germany, and Japan.