The Ernest Mitchell Pratt Photographs (approximately 1932-1936) consist of black-and-white photographic prints, signed and unsigned, taken by Pratt while Hoover Dam was under construction. Many prints are signed and mounted, and two are noted as award-winning photographs shown at the Annual International Salon of Camera Pictorialists in Los Angeles, California. There are additional working prints included alongside the final prints for most of the scenes. Also included in the collection is one small photograph of Pratt. This collection was formerly known as the Price Photograph Collection.

Oral history interview with Lillian Morrison conducted by Dennis McBride on February 05 and 10, 1996 and July 29, 1996 for the Boulder City Library Oral History Project. Morrison opens her interview by discussing life in rural Iowa, her family, and their farm. She discusses how the farm operated in detail and what farming was like in the 1930s. Morrison describes moving to Boulder City, Nevada for employment opportunities. Morrison then describes the Six Companies, her husband's work there, and what living in Six Companies housing was like. Morrison then discusses working at Hoover Dam (Boulder Dam), race relations between African American and white workers, and discovering her own prejudices. She also talks about working for the National Park Service. Lastly, Morrison describes Boulder City, and important people living in the city.

Oral history interview with Ted Monson conducted by Rocky Fagundes on October 04, 1973 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Monson discusses building the first house in North Las Vegas, Nevada with his family including how they transported materials needed to build the house. He also describes Hoover Dam (Boulder Dam), specifically the attention it brought to the area. Later, Monson discusses Block 16 and the development of the Las Vegas Strip.

Oral history interview with Lee Murialdo conducted by Kim Burco on February 26, 1979 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Murialdo discusses the history of Las Vegas, Nevada as it pertains to casinos and city growth. Murialdo describes the initial founding of the city and origins of the name "Las Vegas," entertainment on the Las Vegas Strip, and the different games available to play in casinos. Murialdo also describes the construction of the Flamingo Hotel and Casino, as well as the construction of the Hoover (Boulder) Dam. Murialdo goes on to discuss her novel and why she decided to move to Las Vegas.

Oral history interview with Clara Ann Nickell conducted by Connie Lyons on March 05, 1976 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Nickell discusses moving from California to Boulder City, Nevada to work at the Boulder (Hoover) Dam. Nickell also discusses life at the time such as commuting to Las Vegas, Nevada and methods for heating and air conditioning.

Oral history interview with William Nickell conducted by James Greene on January 07, 1975 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Nickell discusses his job at the Boulder (Hoover) Dam and his life in Boulder City, Nevada.

Oral history interviews with Unette and Richard King conducted by Claytee D. White on March 19, 2015 and January 30, 2018 for the Boyer Early Las Vegas Oral History Project. Richard King begins by describing his early upbringing in Canada before moving to the United States, and eventually moving to Nevada in 1940. He talks about living in Whitney, Nevada before moving to the Huntridge area of Las Vegas, Nevada and describing life in the two places during World War II. He also discusses his father's life and career, working for the railroad in Las Vegas, working as a journeyman printer for Pop Squires, and later owning several newspaper publications, which included the Whitney News, Las Vegas Tribune, Hendersonian, Henderson Herald, and North Las Vegas Sun. Unette King describes her upbringing as a Las Vegas native and her father, who was a construction worker for the Hoover Dam (Boulder Dam). Throughout the interviews, the couple discuss Las Vegas history and aspects of life in the city, including the development of casinos, recreation activities, race relations, and how the city has changed. The two conclude the interview by discussing their reaction to the 1 October mass shooting in Las Vegas, how the city came together following the shooting, and accusations of sexual harassment against Steve Wynn.