Oral history interview with Herbert Jones conducted by Janice Sorensen on April 03, 1976 for the Ralph Roske Oral History Project on Early Las Vegas. Jones discusses prostitution, his experience working on Boulder (Hoover) Dam, the lack of safety precautions, and the working conditions. He also talks about his experience in politics and his career in law.

Oral history interview with Patricia Lappin conducted by Nancy Bright on February 26, 1980 for the Ralph Roske Oral History Project on Early Las Vegas. The interview covers Boulder City, Nevada around Hoover Dam. The two discuss the different gambling habits between Southern Nevada locals and Las Vegas tourists. During the latter half of the interview, the two speak at length about the impact of nuclear waste on Nevada. Lappin explains the unique issues that Southern Nevada faces as one of three states to accept nuclear waste.

The Leonard Blood Papers (1888-1962) consist photographs and personal documents from his work in the United States Navy, Las Vegas Labor Commission, and on the Boulder (Hoover) Dam in Nevada. The bulk of the papers date between 1930 to 1950. Included are correspondence, telegrams, newspaper clippings, a scrapbook, family photographs, and various ephemera.

Oral history interview with Mike Markoff conducted by an unidentified collector on an unknown date in the 1970s for the Ralph Roske Oral History Project on Early Las Vegas. Markoff discusses the Boulder (Hoover) Dam from a construction worker's perspective. Markoff then discusses the negative environmental effects that casinos and other buildings had on Las Vegas, Nevada. Markoff later discusses hunting around the Las Vegas, Nevada area.

Oral history interview with Von Eisinger conducted by Marilyn Eisinger on February 13, 1972 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview Von Eisinger discusses weather conditions of Las Vegas, Nevada, the Hoover Dam, political representation of the different regions within Nevada, hunting, fishing, and labor unions in Nevada.

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.