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 UNLV Libraries Collection of Showboat, Inc. Promotional Materials and Financial Reports includes annual reports, quarterly financial reports, equity research reports, Securities and Exchange Commission Form 10-Q, Securities and Exchange Commission Form 10-K, prospectus, press kit, press releases, promotional materials, and newspaper and magazine clippings for Showboat, Inc. based in Las Vegas, Nevada, and Atlantic City, New Jersey, dating from 1968 to 2002.

The Ralph Denton Legal Papers (1950-1993) consist of case files and legal briefs of civil rights attorney Ralph Denton. The cases largely involve civil rights issues and property claims in Las Vegas, Nevada. The files include cases representing individuals as well as companies such as Henderson Telephone Company, Lephrechaun Mining Company, and the Jockey Club Casino.

The Antonio Morelli Papers include materials spanning from the 1910s to the 1970s that chronicle the professional and private life of longtime Sands Hotel and Casino orchestra conductor and musical director, Antonio Morelli and his wife Helen. The collection includes snapshots from Morelli's early life, three scrapbooks, one box of sound recording tapes, and a box of slides from Thailand. The collection also documents Morelli’s efforts to provide classical music concerts for the Las Vegas, Nevada community and his involvement with the Guardian Angel Church on the Las Vegas Strip.

Collection is comprised of the papers of Las Vegas producer, manager, and agent Matt Gregory from 1959 to 1986. Included are contracts, costume sketches, press releases, videos, show reviews, and advertisements. Also included are correspondence, public relations material, business related material, costume and set design drawings and sketches, slides, negatives, photographs, transparencies, and videos, mostly from the 1960s through the 1980s.