The George Knox Roth Collection (1959-1980) consists of newspaper clippings (including photocopies), magazine articles, newsletters, technical reports and publications, correspondence, notes, and photographs relating to the Atomic Energy Commission, the environmental impact of nuclear testing in Nevada, Nevada mining, Airwest and the Hughes Airport, and other aspects of Howard Hughes’ Nevada operations. The George Knox Roth Collection also includes correspondence and expense reports related to his own company, General Research Consultants.

The Evan and Kathy Thompson Photograph Collection depicts Beatty, Nevada, Rhyolite, Nevada, and Keane Wonder Mine, California around 1925. The photographs include the Rhyolite Bottle House, mining operations in Rhyolite and Keane Wonder Mine, and citizens of Rhyolite.