The Gay Business Directories Collection, compiled by Dennis McBride, dates from 1992 to 2015 and consists of gay and lesbian business telephone directories from sixteen North American markets, including Las Vegas, Los Angeles, Palm Springs, San Diego, San Francisco, Seattle, and Vancouver.

The Tonopah Mining Company Records derive from the office of the company’s general manager in Tonopah, Nevada and consist of documents directly generated by its mining and milling operations from 1901 through 1941. The collection includes daily work reports, assay reports and certificates, employee time cards, invoices and receipts for mining equipment and supplies, monthly stores reports, and the company’s numerous insurance policies. Several of the company’s annual reports, including an original typescript copy of the 1907 annual report, are included in the collection. Additionally, select records from the company's subsidiary, Desert Power and Mill Company, as well as the Tonopah and Goldfield Railroad, which include overcharge claims, freight and repair bills, and delivery receipts are included in the collection.

The Anthony J. Franchini Papers date from 1915 to 1996 and contain the personal and professional papers of Anthony Franchini, a musician and composer. The collection contains newspaper clippings, personal correspondence, Franchini's United States Army records, sheet music, personal photographs, and a scrapbook compiled by Franchini.

The Las Vegas Valley Land Ownership Collection contains lists of property owners in the Las Vegas Valley from 1962 to 1965. Materials are organized by Section and Township, all located in Ranges 60 to 63. Some files also contain plat maps.

Nevada State Senator Bob Coffin Records of the Kathy Augustine Impeachment Trial (2004) contains exhibits, testimonies, witness lists, questions posed, computer forensic evidence, correspondence, newspaper clippings, magazine articles, and printed legislative materials. Also included are 21 DVD recordings of the trial.

The Prince Stanislaus J. Bielski Papers, 1908-1979, are comprised of legal and personal documents, including letters and genealogical records, primarily referencing litigation between Prince Stanislaus J. Bielski and his wife, Jeannine Bielski De Ayala. Also included are photographs of Bielski, his family, and friends.

The Pacific Engineering and Production Company of Nevada (PEPCON) Disaster Collection of News Articles (1988-1992) consists of articles from Las Vegas and other state and regional newspapers about the PEPCON plant explosion that took place in May of 1988. Also included are United Press International press releases from October to December, 1988.