The Franklin M. Murphy Photograph Collection, dates from approximately 1929-1933 and consists of black-and-white photographic prints with 27 corresponding negatives. The majority of the images show locations in and around the current site of Hoover Dam and Lake Mead in southern Nevada and Arizona with a focus on the geology of the area; a smaller number show individuals and locations in Las Vegas, Nevada.

The Blanch Jackson Photograph Collection (approximately 1900-1941) contains black-and-white photographic prints and negatives from the Jackson family’s life in Tonopah, Nevada and their travels to mining sites in Nevada and Arizona. Blanch, her husband Clyde, her father-in-law Colonel David Howell Jackson, their two sons, and some acquaintances are pictured in the photographs.

The William S. Park Photograph Collection (approximately 1870-1960) consists of black-and-white photographic prints and negatives of the families of William S. Park, John S. Park, and John William Park, as well as photographs of the Thomas children, half-siblings of John William Park's daughter Virginia. The majority of the images show locations in Las Vegas, Nevada with a smaller number taken in Kentucky, Oklahoma, Colorado, and California. Also included are three photograph albums of William S. and John William Park as children.

The Tomiyasu Family Photograph Collection (approximately 1908 to 1991) consists of black-and-white photographic prints of the Tomiyasu family and their farming business in southern Nevada.

The Emily Higby Powell Photograph Album (approximately 1910-1920) contains black-and-white photographs taken by Emily Higby Powell on a trip from New York to the west coast. The images depict desert landscape throughout the Southwest, including Northern Nevada, as well as images taken on Lake Champlain in Essex, New York.

The George Laurence Ullom Photograph Collection (1915-1974) contains photographic prints and negatives created by Las Vegas, Nevada photographer George Laurence "Larry" Ullom. Larry owned and operated Ullom’s Desert Art Studio, which was located in Las Vegas, Nevada. The bulk of the collection consists of Ullom's wedding chapel photography. The collection also includes his photography work for the Bureau of Reclamation, the Agricultural Extension Service, and the Associated Press, Atlantic News, and Acme news bureaus.

The Burrell C. Lawton Photograph Collection on the Hoover Dam depicts the construction of the Hoover (Boulder) Dam on the Colorado River near Las Vegas, Nevada from 1931 to 1934. The photographs primarily depict workers, construction equipment, and the progression of the dam's concrete structures. The photographs also depict construction of diversion tunnels, bridges, the gravel plant, the intake towers, and the concrete mixing plant.