The Helen J. Stewart Photographs depict the Stewart Family from approximately 1860 to 1950. The photographs primarily depict Helen J. Stewart and her children as well as the Stewart Ranch (also know as the Las Vegas Ranch) in Southern Nevada. The photographs include the early Las Vegas, Nevada town site, landscapes of Southern Nevada and the American Southwest, mines and mining camps, railroads and railroad workers, the Las Vegas Fort (also known as the Old Mormon Fort), hotels and early businesses in Las Vegas, Native Americans and Native American artifacts, and postcards.

The Environmental Radiation Protection Standards for Yucca Mountain, Nevada collection (1957-2010) is an information docket established by the U. S. Environmental Protection Agency (EPA). The collection contains documents supporting the development of regulatory decisions by the EPA on radiation protection standards for Yucca Mountain, Nevada, evaluating it as a potential site for a radioactive waste storage repository. The collection includes regulatory notices, technical documents, environmental reports, letters, minutes of meetings, public comments, and other materials.

Oral history interview with Lonnie D. Spight conducted by David Emerson on May 08, 2007 for the UNLV @ 50 Oral History Project. In this interview, Lonnie D. Spight discusses being hired to teach physics at the University of Nevada, Las Vegas Physics Department in 1970. He also discusses serving as chair of the department several times, working on solar energy and far- field microwave analysis, and helping set up safety standards for laser technology.