Oral history interview with Wilfred Voss conducted by Ann Chetelat on March 02, 1975 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Voss discusses his personal history and employment experiences. He goes on to describe his employment at the Hoover Dam (Boulder Dam) as a laborer and recalls the construction process. Voss then discusses his involvement with the Masonic Lodge in Boulder City, Nevada.

Oral history interview with Steven Ligouri conducted by Claytee White on January 20, 2010 for the Voices of the Historic John S. Park Neighborhood Oral History Project. Ligouri discusses his career as a sculptor making jewelry in his father's business and making the statue High Scaler at Hoover Dam. He also discusses living in the John S. Park Neighborhood and on a family farm in North Las Vegas, Nevada and Boulder City, Nevada.

The Franklin M. Murphy Photograph Collection, dates from approximately 1929-1933 and consists of black-and-white photographic prints with 27 corresponding negatives. The majority of the images show locations in and around the current site of Hoover Dam and Lake Mead in southern Nevada and Arizona with a focus on the geology of the area; a smaller number show individuals and locations in Las Vegas, Nevada.

Oral history interview with Edith Allan conducted by Elizabeth Cleary on February 26, 1977 for the Ralph Roske Oral History Project on Early Las Vegas. Allan discusses living on a dairy farm, as well as her experiences working for Western Union and the Sal Sagev Hotel. Allan also mentions the building of Hoover Dam, Block 16, and the Stewart Ranch.

Oral history interview with Gene Leavitt conducted by his son, Monte Leavitt, on February 28, 1979 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Mr. Leavitt talks about his career as a truck and bus driver. He also talks about the life in Southern Nevada, the soldiers stationed here, and gambling. Leavitt also briefly discusses doing drilling work on the Boulder (Hoover) Dam.

Oral history interview with Merle Frehner conducted by Robert Laas on July 05, 1975 for the Ralph Roske Oral History Project on Early Las Vegas. Frehner discusses atomic testing, freighting, the "Arrowhead Trail", the Great Depression, and Boulder (Hoover) Dam in Nevada.

Oral history interview with Elsie Whipple conducted by Hugo A. Cascos Jr. on March 22, 1978 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Whipple discusses Southern Nevada history and recalls the construction of Boulder (Hoover) Dam. Whipple also recalls the first hotels and casinos to open on the Las Vegas, Nevada Strip, and her work as a missionary with the Mormon Church.