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 George W. Malone Papers (1928-1933) consist of one bound volume of letters, documents, speeches, reports, and maps pertaining to Malone's positions as: Nevada State Engineer; National Executive Committeeman for the American Legion; President, Association of Western Engineers; Secretary, Colorado River Commission; member, Nevada State Range Commission.