The John Wittwer Collection on Agriculture in Nevada (1898-1972) contains the professional papers and records of John Wittwer in his capacity as an Agricultural Extension agent for the University of Nevada from 1921 to 1954. The records are primarily annual reports containing text, photographs, newspaper clippings, and charts that provide a rich chronicle of the conditions of agriculture and ranching in southern Nevada from 1898 to 1972, with the bulk of the material dating from 1929 to 1955. These conditions span water issues, such as flood control and irrigation, to the general difficulties of sustaining agriculture and viable food production in a desert environment. The reports come from the Agricultural Experiment Stations in Clark and Lincoln counties and most contain both a statistical report and a narrative summary.

The Henderson Public Library Photograph Collection on Henderson, Nevada (approximately 1940-1988) depicts life and growth in Southern Nevada. The collection documents the growth of Henderson, Nevada through images of Basic Magnesium Incorporated, housing throughout the area, and events. The documentation of Basic Magnesium Incorporated, its activites, personnel, and buildings from 1942 through 1944 is prominent in this collection.

The River Mountains Trail Partnership Records date from 1995 to 2015 and document the planning and construction of the River Mountains Loop Trail in Clark County, Nevada. The collection contains meeting agendas and minutes, correspondence, project notes, trail maps, land surveys, grant applications, photographic slides of the trail and Lake Mead, environmental assessments, ephemera from National Trails Day, trail guides, interpretive plans, and development reports.

The Clifford Jones Family Papers (1900-2005) consist of awards for community service, newspaper clippings, correspondence sent to family members by Cliff Jones when he was in the military, and photograph albums of the Jones family. Clifford Jones was the 20th Lieutenant Governor for Nevada from 1947 to 1954.