The Fayle Family Papers (1895-1998) document the family's personal and business interests in Goodsprings, Nevada and Las Vegas, Nevada. The collection contains mining documents, business records, and photographs from Leonard Fayle’s work with the Las Vegas Valley Water District, where he documented reservoirs, dams, and both abandoned and functioning mines. The photographs also include family members, vacations, and Southern Nevada fraternal organization pictures.

The Edith Giles Barcus Family Papers document the lives and work of three related individuals who lived in Goldfield, Nevada: noted mining engineer Edwin S. Giles who settled in Goldfield in 1907, his daughter Edith Giles who was raised in Goldfield, and Clyde Barcus, also a mining engineer, who came to Goldfield in 1923 and married Edith Giles soon thereafter. The papers date from 1848 to 1979 and document the business and personal lives of two generations of the Giles-Barcus family in Goldfield and Las Vegas, Nevada. The collection includes: property, commercial, financial, and mining records; mining and engineering reports; notes on minerals; correspondence; and photographs of the family, Goldfield, and travel shots of the western United States.