The Hoover Dam photographs depict the Hoover (Boulder) Dam on the Colorado River from approximately 1928 to 1961. The photographs depict its construction and surrounding areas, including the Colorado River, Lake Mead, Black Canyon, Boulder Canyon, Boulder Highway, and Boulder City, Nevada. The photographs also depict construction crews, machinery, and the completed dam. The items described include photographic prints and negatives; items listed are photographic prints unless otherwise specified.

The Las Vegas, Nevada photographs depict the city of Las Vegas, Nevada from approximately 1927 to 1982. The photographs primarily depict the city from 1930 to 1940 and largely focus on unemployed workers seeking jobs on the Hoover Dam project, hotels and casinos, and sporting events. The sporting events show professional boxers and professional wrestlers, including boxers Ace Hudgens and Jack Dempsey, and wrestlers George Batalis (or George Paulus), Leo Papionis (or Leo Papinao), and Ira Dern. The items described include photographic prints and negatives; items listed are photographic prints unless otherwise specified.

The people in the American Southwest photographs series depict people in locations throughout the American Southwest from 1939 to 1980. The locations include a town in Nevada; Berkeley, Van Nuys, and Escondido, California; and the Davis Dam in Arizona.