Oral history interview with Leo Dunbar conducted by Dennis McBride on June 16, 1986 for the Boulder City Library Oral History Project. In this interview, Dunbar gives a brief history of the Bureau of Reclamation (Bureau of Land Management) and the beginning of his life-long career with that agency, first working on two major projects in Colorado. He then discusses how The Six Companies won their bid to build the Hoover Dam, the establishment of the federal reservation that would house Boulder City, and the growth and development of both the city and the dam project.

Oral history interviews with Elton Garrett conducted by Dennis McBride on November 10 and 11, 1986 for the Boulder City Library Oral History Project. In these interviews, Garrett talks about hitchhiking into Nevada in 1928, the beginning of his journalism career in 1929, and the development and construction of the Hoover Dam and Boulder City. He relates anecdotes about events and people during this early period and talks about the choice of The Six Companies, Incorporated to build the dam. He continues, talking about the impact of prohibition, bootlegging, and illegal gambling before 1931. Later he talks about his work as an educator in Boulder City, and the decision by the city to work toward self-government and incorporation.

Oral history interviews with Leroy Burt, Joseph Kine, and Tommy Nelson conducted by Dennis McBride on November 10 and 11, 1986 for the Boulder City Library Oral History Project. The men discuss what they had been doing when the depression started in 1929, when they moved to Nevada, and their first jobs in Boulder City and the dam site. They share stories about their work experiences and discuss the different types of work at the dam, including high scalers, form strippers, jackhammer operators, and concrete pouring and puddling. They also talk about incidents and accidents that occurred during production, and the differences in safety standards in the 1930s and the 1980s.

Oral history interviews with Merle Frehner conducted by Elisabeth Nelson Patrick January 17, 1981 and January 19, 1981 for the UNLV University Libraries Oral History Collection. In the first interview, Frehner talks about his upbringing in Littlefield, Arizona and moving to St. Thomas, Nevada. He talks about driving heavy-duty freight wagons, transporting mining supplies, and the formation of a school district in St. Thomas. Frehner remembers the entertainment in St. Thomas during the 1920s, recreational activities, and commuting to Overton, Nevada to attend high school. Lastly, Frehner describes the local businesses in St. Thomas, miners residing in the town, and the town’s growing popularity after the construction of Arrowhead Trail (U. S. Highway 91). In the last interview, Frehner discusses transporting produce to Las Vegas, Nevada and Tonopah, Nevada during the late 1920s, the construction of Hoover Dam, and Lake Mead water levels overtaking St. Thomas.

Oral history interview with Jon Cobain conducted by Claytee D. White on March 4, 2022 for the Boyer Early Las Vegas Oral History Project. In this interview, Cobain describes his childhood growing up in Las Vegas, Nevada and living in a trailer while his father built the family's home. Cobain is the first graduate from the University of Nevada, Las Vegas (UNLV), as he walked across the stage first, thus becoming the first to receive a degree from UNLV. After graduating with a bachelor's degree in business, Cobain attended Northwestern for graduate school. He discusses time spent working in Venezuela, and the value of learning other cultures and building international relationships. At the time of the interview, Cobain is matching gifts to the Jon Cobain Lee Business School at UNLV up to $2.3 million to help first-generation scholars. Other subjects discussed include the Nevada Test Site, Frank Sinatra, and Hoover Dam.

The L. F. Manis Papers on Boulder Dam, 1936-1957, contain material and publications relating to Boulder (Hoover) Dam and the Boulder Canyon Project. Included are brochures, pamphlets, postcards, a scrapbook, and newspaper clippings.

The UNLV University Libraries Collection on Hoover Dam dates from 1935 to 1937 and consists of black-and-white photographs of the construction of Hoover Dam in Nevada. The collection is an artifical collection created by UNLV Special Collections and Archives staff. The photographs document early construction of the Hoover Dam to images of the dam at completion. The collection also contains photographs of construction workers.