The Nevada Consolidated Copper Company Photograph Albums (1906-1907) contain two photograph albums from the mining company's chief engineer's office. The photograph albums include cyanotype and black-and-white photographs depicting the construction of the smelting plant, equipment, railroad, and landscape of Ruth, Nevada.

The Fort Mojave Indian School Records (1890-1923) consist of correspondence, finance and administrative records, pump station blueprints, and policy implementation and fact finding records. The school served the Hualapai and Mojave Indians at a site near present-day Kingman, Arizona. The information is contained in two bound volumes.