The Lake-Eglington Family Photograph Collection contains photographs of the Lake-Eglington Family in and around Las Vegas, Nevada from 1900 to 1976. The materials include photographs of early Las Vegas resident Olive Lake-Eglington and her family shortly after they moved to Las Vegas in 1904, as well as her eventual husband Earle Eglington after he moved to Las Vegas in 1911. The materials also include photographs of Native American artifacts, schools in Clark County, Nevada, artesian wells, the Hoover (Boulder) Dam, the Colorado River, Mt. Charleston, the Mormon Fort, the Stewart (Kiel) Ranch, the Las Vegas Ranch, and many early residents of Las Vegas.

The Betty Ham Dokter Photographs depict the Ham Family from 1850 to 1976. The materials include photographs of the family after they moved to Las Vegas, Nevada in 1916 and document the early growth of the city. The materials also include photographs of the Colorado River, the Hoover (Boulder) Dam site before and after its construction, dinner parties, family photographs, and citizens of the Las Vegas area. The materials also include photographs of Alta Mereness Ham, Betty Ham Dokter's mother, on the set of the film Water.

The Glenn Davis Photograph Collection (approximately 1914-1960) depicts life in Southern Nevada and the American Southwest. The images were created or collected by Las Vegas photographer Glenn Davis and include images of the construction on the Hoover Dam (formerly known as the Boulder Dam), landscapes, gaming, and residents of the region.

The Virginia "Teddy" Fenton Photograph Collection on the Hoover Dam and Boulder City, Nevada (1920-1985) contains photographs of the Hoover Dam, Colorado River, and Boulder City, Nevada. The photographs depict the construction of the Hoover Dam from 1931 to 1936, views of the dam after it was finished, and workers building the dam.

The Robert E. "Spud" Lake Photographs depict "Spud" Lake, his family, and Las Vegas, Nevada from 1905 to 1947. The photographs include the Las Vegas town site auction, Stewart (Kiel) Ranch, Clark County Courthouse, Eglington Ranch, Helldorado Parade, and Colorado River and the Hoover (Boulder) Dam. The photographs also depict a Las Vegas Chamber of Commerce luncheon honoring Las Vegas pioneers, the Gold Bar Club tent in Pahrump, Nevada, and Fremont Street in Las Vegas.

The Union Pacific Railroad Photographs depict the Union Pacific Railroad Company's tracks, depots, locomotives, and stations in Southern Nevada and Southern California from 1904 to 1973. The photographs primarily depict Union Pacific officials in Las Vegas, Nevada, construction of Boulder City, Nevada and the Hoover (Boulder) Dam, hotels and casinos in Las Vegas, and the aftermath of flooding in 1938 that damaged Union Pacific tracks.

The Bureau of Reclamation Photographs of the Hoover Dam and Boulder City, Nevada depict the construction of the Hoover (Boulder) Dam and the development of Boulder City, Nevada from 1869 to 1974, with a bulk of the materials dating from 1929 to 1940. The photographs primarily depict the construction operations in Black Canyon, including digging tunnels, pouring concrete, building the power plant, and inspections by Bureau of Reclamation engineers. The photographs also depict Boulder City, including schools, workers, and dormitories. The collection also includes photographs of St. Thomas, Nevada, Lake Mead, Nelson’s Landing, Nevada, and an archaeological excavation near Lake Mohave, Nevada.