The Dorothy Dorothy papers (approximately 1913-1986) document the life of singer, songwriter, columnist, pilot, and farmer, Dorothy Dorothy. Materials contain genealogy records, correspondence, business and organizational records, local history, sheet music, artifacts, and two boxes of photographic prints. Also included are materials relating to her active involvement with animal rights campaigns.

The National Organization for Women, Las Vegas Chapter Records document the philosophy, activities, and politics of the National Organization for Women (NOW) from 1966 to 2009 with most materials covering the period of 1971 to 1974. The records demonstrate the activities and political positions of NOW and they include correspondence, policies, memoranda, files, publications, and ephemera from the Las Vegas, Nevada chapter.

The Union Pacific Railroad Collection (1828-1986) is comprised of the original corporate records of the Union Pacific Railroad's operations in Southern Nevada, Utah, and Southern California, particularly focusing on Las Vegas and Los Angeles. The collection documents the purchase of Stewart ranch and the construction of the original depot and town which became modern Las Vegas. The collection also contains the records of the Las Vegas Land & Water Company (LVL&W), a subsidiary of the railroad formed in 1905 to handle the railroad's land transactions. The collection contains office files, correspondence, reports, leases, various legal, governmental and financial document, the collection contains large and small format maps, architectural and engineering drawings, published technical reports, railroad operational manuals, bound legal briefs, ledgers, and payroll and receipt books. The collection also includes the personal files of Walter Bracken, the Union Pacific's special representative in Nevada and vice president of the Las Vegas Land and Water Company, and a paper index of the collection materials.