The Penelope Ruchman Collection of Las Vegas, Nevada Casino Professionals Oral Histories includes interviews conducted by Ruchman from approximately 1999 to 2001 of casino industry workers who worked in Las Vegas, Nevada. The majority of interviews were conducted by Ruchman in their office at Gambler's Book Shop (GBS), but some where conducted in interviewee's homes and offices, or over the phone. The collection represents Ruchman's efforts to interview and document a generation of early casino industry workers that were quickly aging. The project was intended to be compiled as a definitive history of Las Vegas and American gambling, entitled "After the Gold Rush." The project was permanently postponed in the fall of 2001 when Ruchman left GBS to work for Park Place Entertainment as a corporate business and operations analyst, and later as casino operations director for Caesars Palace. Not all interviews have digital transcripts available.

The Samuel Liddle General Store Records (1885-1887) are comprised of order forms, inventories, and customer ledgers for Liddle's General Store in Leadville, Nevada. The store was created to provide services to residents and prospectors during a mining boom in White Pine County that lasted from 1887 to approximately 1890. The materials also consist of Liddle's General Store accounts, business correspondence, and transactions, such as wholesale purchases of general merchandise and mining supplies from vendors in Eureka, Nevada, San Francisco, California, and smaller nearby locations. An undated hand-drawn map of the townsite is also included.