The Ed W. Clark Photograph Collection contains photographs that depict politicians and businesspeople in Southern Nevada from 1900 to 1975. The photographs depict several Democratic Party members, including U.S. Senators Pat McCarran and Berkeley Bunker, Nevada Assemblyman Harry Edward "Hap" Hazard, and Nevada Governor Edward P. Carville. The photographs also depict political events, including the planting of a tree in the courthouse park of Las Vegas, Nevada, and a parade on Fremont Street in Las Vegas.