The David Donovan Collection on Hydrology and Geology (1911-2011) is comprised of the research collected by former Las Vegas Valley Water District employee, David Donovan, about groundwater, hydrology, minerals, and geology in Nevada, as well as the surrounding areas of California, Arizona, and Utah. Included are reports, professional papers, maps, and books.

The Mary Griffith Toleno Photograph Collection contains photographs of Nevada from approximately 1875 to 1964. The materials include photographs of Fort Churchill, the Virginia and Truckee Railroad, the New York Mine in Silver City, Virginia City, buildings in Lovelock, Nevada, and locations in Carson City, Nevada and Reno, Nevada. The materials also include photographs of the Griffith family and friends.