The Alice Lake-Rockwell and Earl Rockwell Photographs depict the Las Vegas, Nevada area from approximately 1880 to 1962. The photographs primarily depict the Lake-Rockwell Family in Las Vegas, including Earl Rockwell with a local baseball team, the Las Vegas Volunteer Fire Department, and the Las Vegas Police. Other photographs include the Hoover (Boulder) Dam construction site and views of the completed dam. The photographs also portray family members from the Rockwell Family.

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 Florence DeVinney Krolak Photograph Collection (approximately 1930-1979) contains photographic prints of the Casino Monte Carlo in Monaco, the Boulder (Hoover) Dam with local dignitaries, and Harley E. Harmon and Frank DeVinney (Clark County Assessor). The collection also contains one publicity photograph of Neil Diamond and some images have corresponding negatives. Frank DeVinney was an assessor for Clark County, Nevada.

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.

Oral history interview with Dean Pulsipher conducted by Dennis McBride on August 19, 1986 for the Boulder City Library Oral History Project. In this interview, Pulsipher discusses his early life in St. Thomas, Nevada and Bunkerville, Nevada. He remembers traveling to Las Vegas, Nevada as early as 1905, moving to Las Vegas in the early 1920s, and the significance of the railroad at the time. Pulsipher describes living through the prohibition era, paving the road from Las Vegas to Searchlight, Nevada, and the construction of the Hoover Dam.

Oral history interview with Ron Floth, John Holman, and James Holland conducted by Stefani Evans and Claytee D. White on August 17, 2017 for the Building Las Vegas Oral History Project. In this interview, Ron Floth, John Holman, and James Holland discuss their interest in trails and outdoor recreation. They talk about their involvement with the River Mountain Loop Trail Partnership and maintaining the trail systems near Boulder City, Nevada.

Oral history interview with Alice Brumage conducted by Claytee D. White on January 30, 2019 for the Boyer Early Las Vegas Oral History Project. In this interview, Brumage discusses her upbringing in Boulder City, Nevada and the construction of the Hoover Dam (Boulder Dam). She remembers her father’s involvement in the construction of the Dam, her parent’s membership in the Boulder City Rifle and Pistol Club, and the growth of Boulder City.