Oral history interview with Mitchell A. Cobeaga conducted by Raymond E. Frey on March 14, 1976 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview Mitchell Cobeaga discusses early life in Nevada, the history of the Nevada State Bank, education in Nevada in the 1920s and 1930s, and Southern Nevada's influence over the rest of the state.

Oral history interview with Dr. David Bruce Dill conducted by James Greene on December 20, 1974 for the Ralph Roske Oral History Project on Early Las Vegas. This interview covers physiological investigations regarding the operation and biological adaptations of people living in the desert environment of Southern Nevada, particularly in Boulder City and Nelson Township.

Oral history interview with Iva MacDonald conducted by Vaune Kadlubek on March 04, 1979 for the Ralph Roske Oral History Project on Early Las Vegas. In the interview, MacDonald discusses living in Henderson, Nevada and Las Vegas, Nevada. MacDonald also discusses McCarran Airport, family, and her various occupations including secretary, bookkeeper, and real estate saleswoman.

Oral history interview with Arlene Matthews Smith conducted by Elizabeth Nelson Patrick on March 26, 1981 for the Ralph Roske Oral History Project on Early Las Vegas. Smith discusses living in Caliente, Nevada and recalls her family history. Smith also discusses going to high school in Panaca, Nevada, construction of Boulder (Hoover) dam, prohibition, and the growth of Las Vegas, Nevada.

Oral history interview with Jennie Mead on March 04, 1978 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Mead discusses her career as a waitress at the Hacienda Hotel and Casino in Las Vegas, Nevada, where she had worked for twenty-one years at the time of the interview. Mead also describes how the Hacienda Hotel and Casino had changed over the years.

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 Justin Kaiser conducted by John (last name unknown) on September 23, 1972 for the Ralph Roske Oral History Project on Early Las Vegas. Kaiser discusses his childhood in Las Vegas, Nevada and how his parents originally moved to Southern Nevada. He also expresses his desire for Las Vegas to discontinue its growth and remain a smaller city.