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 James B. McDaniel Records (1960-1978) comprise the plans and drawings created by Las Vegas, Nevada architect James McDaniel who worked independently as James Brooks McDaniel Architect (from 1960-1978) and with a partner as Moffitt and McDaniel Architects, Limited (during the 1970s). This collection includes materials from over 115 projects managed by McDaniel. Records include oversized architectural drawings, and files of architectural projects. McDaniel designed many University of Nevada, Las Vegas (UNLV) buildings, residential, commercial, and landscape designs for Las Vegas clients. Also included are business files of construction estimates, specifications, invoices, change orders, and correspondence.