The Howard Cannon Photograph Collection (1950-1983) contains photographic prints, negatives, and one slide featuring Senator Howard Cannon at various political and publicity events with military personnel, political colleagues, and constituents primarily in the state of Nevada. Other photographs feature Cannon at political and publicity events outside of Nevada including California, New York, Florida, Oregon, and Washington, D.C.

The Charles S. Sprague and Benjamin Gill Papers on Nevada Mining (1904-1925) are comprised of various records from the mining companies owned and operated by businessmen Charles S. Sprague and Benjamin Gill who were active in the central Nevada boomtowns of Goldfield and Tonopah in the early twentieth century. Documents include correspondence, receipts and invoices, detailed records and copies of government legislative bills relating to the mining industry, and other business correspondence. Sprague's collection consists of his mining business correspondence dating from 1906 to 1925. Gill's papers are comprised of his business correspondence from 1916 to 1922.