The Leprechaun Mining and Chemical, Inc. Records from 1954 to 1998 contain business information, Foot Chemical Company partnership documentation, meetings, audit and investment reports, financial papers, and stock certificates and transfers. Also included is data on the minerals mined in Nevada, such as salt, potash, and lithium.

The Young Electric Sign Company (YESCO) Corporate Records (1914-2000) document the history of the Young Electric Sign Company (YESCO) and is comprised of photographs of sign production and finished signs, negatives, slides, transparencies, anniversary scrapbooks, and videotapes. The collection also contains meeting minutes, correspondence, price books, drawings, calculations, newspaper and trade magazine articles on YESCO, advertising materials, and oral history interviews and audio recordings of YESCO designers and executives. YESCO is responsible for many of the neon signs in and around Las Vegas, Nevada and Reno, Nevada, as well as other Western states.

The Fayle Family Photographs depict the Fayle Family in Southern Nevada and California from 1888 to 1990. The photographs primarily include family photographs of Leonard Fayle, Anna Louise Trapnell Fayle, Leonard Fayle’s parents George Fayle and Jean Henderson Fayle, Leonard Fayle’s siblings George Arthur Fayle and Jean Nevada Fayle, and Leonard and Anna Fayle’s children Jane and Edward Fayle. The photographs also depict the Nevada towns of Las Vegas, Goodsprings, and Jean, including railroad operations, mining, milling, and hauling freight. The collection includes a leather-bound photograph album containing images of the Fayle Family and the Yount Family.

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.