The Ralph Roske Papers (1957-1989) consist of Ralph Roske's book manuscripts, lecture notes, and correspondence. The collection includes extensive lecture notes on the United States Civil War, United States history, and Nevada history. It also includes Roske's research and manuscripts on Nevada, California, and the United States Civil War, as well as student

papers. Ralph Roske was a professor of history at the University of Nevada, Las Vegas (UNLV).

The Charlotte Hill Papers (1975-1996) document Charlotte Hill’s commitment to the Las Vegas, Nevada community and especially to the local PBS affiliate, KLVX Channel 10. The majority of the collection relates to KLVX Channel 10 and the work of the Friends of Channel 10 on behalf of the station, in particular information about fundraising events and volunteers. It also contains material related to Hill's membership in national organizations associated with public broadcasting. The collection includes some material about her work with the American Camping Association and the Las Vegas Sun Summer Camp Fund.

The Six Companies, Inc. Hoover Dam Photograph Collection (1931-1935), consists of approximately 400 black-and-white photographic prints contained in two photograph albums and an additional twenty-one loose black-and-white photographic prints with ten corresponding photographic negatives.