The Leon Rockwell Photograph Collection (approximately 1850-1979) contains black-and-white photographic prints, negatives, and slides, as well as postcards and tintypes. The images portray the lives of the Rockwell family in southern Nevada, their travels throughout New York and the western United States, and their immediate and extended family members. Also included are images of the volunteer and early firefighters of Las Vegas, Nevada, the Rockwell's family cabin at Mount Charleston, Nevada, and the Rockwell family home in Las Vegas. Portions of the images are from the Rockwell family travels across Nevada, Utah, New Mexico, Arizona, and California and depict historic locations such as Cove Fort, Utah; Rhyolite, Nevada; and Pueblo Grande de Nevada.

The Pueblo Grande de Nevada Photograph Collection (approximately 1920-1980) contains black-and-white photographic prints, negatives, and slides depicting archaeological sites located in Overton, Moapa, Valley of Fire, Red Rock, Pyramid Lake, Kane Springs, Virgin River, the “Lost City,” and Lake Mead, Nevada. Images display the different stages of digging during the archaeological excavation of Pueblo Grande de Nevada. Also included are images showcasing artifacts uncovered during the excavations, the Saint Thomas, Nevada and the flooding of archaeological sites after the construction of the Hoover (Boulder) Dam.

The Barbara and John Kizziar Photograph Collection primarily contains black-and-white photographic prints and negatives of Hoover Dam (Boulder Dam) construction during John Kizziar’s time working for Six Companies Inc. between approximately 1986 and 1992. These images are reproductions of originals taken from between approximately 1930 and 1945. They detail John Kizziar’s work life during the dam’s construction, as well as events and scenes associated with the dam. Other images portray billboards and streets in Boulder City, Nevada. The collection also depicts other locations in Nevada, including Las Vegas, Mount Charleston, Black Canyon, the northern Mojave Desert, and the Colorado River ferry crossing between Nevada and Arizona.

The Nevada Nurses Association Photograph Collection (approximately 1980-1990) is comprised of seventy-six photographic slides, and six color photographic prints that depict the Nevada Nurses Association conference held at the Sahara Hotel and Casino in Las Vegas, Nevada. The collection also includes black-and-white negatives from the 1986 Legislators' brunch in Las Vegas, Nevada.

The Robert M. Stevenson Postcard Collection, approximately 1943, contains black-and-white photographic prints and postcards of scenes from Death Valley, California. Images depict interior and exterior shots of Scotty's Castle at Death Valley Ranch and a portrait of Walter E. Scott, known as "Death Valley Scotty."

The Paul May Photograph Collection (1969) consists of black-and-white and color photographic prints. The images primarily depict Nevada Assemblyman Paul May alongside Nevadan senators and congressmen, including Senator Paul Laxalt. Other images are portraits of May.

The Nevada Highway Department Photograph Collection contains photographic slides of a landscaping project performed by the State of Nevada Department of Highways between 1968 and 1970. This project took place in Las Vegas, Nevada along Interstate 15 (I-15) between Tropicana Avenue and Sahara Avenue.