The Central Credit, Inc. Records (1956-1987) contain meeting minutes, employee records, business ledgers, newspaper clippings, membership applications, photographs, and reports. Also included are incorporation papers, a Code of Ethics, Credit Law, Tod Early's personal calendars/diaries, and audiovisual materials. Central Credit, Inc. had branches in Reno, Las Vegas, and Lake Tahoe, Nevada, and also in London.

The Danny Cassella Collection of Sheet Music (1940s-1960s) consists of stock arrangements for songs and scores from the 1940s through the 1960s. The arrangements were collected by musician Danny Cassella. Additionally the collection contains several Tune-Dex cards.

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 Frank Williams Papers on Early Nevada (1892-1946) consists of manuscripts written for the most part by Frank Williams, an early resident of Southern Nevada. The collection includes Williams' autobiography as well as histories of Goodsprings, Potosi Mine, Mesquite Valley, and the Yellow Pine Mining districts. Finally, this collection contains reports and material reflecting Frank Williams' two terms as University Regent (1909-1912 and 1923-1942) at the University of Nevada, Reno, and his four terms in the Nevada State Assembly.