The Tonopah and Tidewater Railroad Records (1905-1977) contain correspondence, purchase requisitions, bills of lading, freight reports, and waybills. Also included are a ledger book, a rubber stamp, and a booklet, "Diagrams of Locomotives and Tenders." Incorporated in 1904, the Tonopah and Tidewater Railroad operated for 35 years, connecting Ludlow, California with Beatty, Nevada by way of Death Valley on the Santa Fe Railroad main line. The records are concentrated on the later years of the railroad from 1930 to 1940.

The Tonopah-Goldfield Mining Photograph Collection depicts mining activities in the mining towns of Tonopah and Goldfield in Esmeralda County, Nevada from approximately 1901 to 1920. The photographs primarily depict mines, miners, mills, construction, ore, and workers transporting ore. The photographs also depict events and people in Tonopah and Goldfield, including parades, celebrations, banquets, children, Native Americans, and prominent buildings.