The Beckley Family Photograph Collection (approximately 1891-1982) consists of black-and-white photographic prints and negatives and color photographic slides. The images depict the Beckley family, their businesses in southern Nevada, and Las Vegas, Nevada as the city developed during the first half of the twentieth century. Also included are images of airplanes at the first Las Vegas airport Anderson Field, later renamed Rockwell Field in 1925, Fremont Street in Las Vegas, and postcards of mining towns across southern Nevada.

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 Alice Key Photograph Collection (1930s-1990s) is comprised of color and black-and-white photographic prints of activist, dancer, and journalist Alice Key with family, friends, political figures, and performers. Materials include photographs of Senator Howard Cannon, Louis Armstrong, and Bill Robinson, and signed professional head shots. Also pictured are Key's coworkers and unidentified performers.

The Oran K. Gragson Photographs depict Las Vegas, Nevada mayor and businessperson Oran K. Gragson from 1957 to 1981. The photographs primarily depict Gragson at political events with his wife Bonnie and other politicians such as U.S. senators Howard Cannon and Alan Bible, and Nevada Governor Paul Laxalt. The photographs also depict Gragson at groundbreaking ceremonies, Nellis Air Force Base, Las Vegas hotels and casinos, the mayor’s office, ribbon-cutting ceremonies, and with performers such as Wayne Newton, Sammy Davis Jr., and Lawrence Welk.

The Squires Family Photographs document the Squires Family and the development of the Las Vegas Valley in Nevada from approximately 1860 to 1980, with a bulk of the photographs depicting people and events from 1900 to 1950. The photographs depict the Euro-American settlement and growth of Las Vegas, Nevada; traveling and exploration of Southern Nevada and the Southwestern United States; the Hoover (Boulder) Dam and the Colorado River; clubs and social groups; and the Squires Family, especially prominent newspaper editor and publisher Charles Pember (C. P. or “Pop”) Squires, Delphine “Mom” Anderson Squires, and their children.

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 H. E. “Hap” Hazard Photographs (approximately 1940-1969) depict politicians in Southern Nevada. Senator Alan Bible, Governor Edward P. Carville, Senator Mike Mansfield and Senator Pat McCarran appear in photographs at political events. Along with images depicting politicians, an aerial shot of downtown Las Vegas, Nevada in the 1950s is also present.