Oral history interview with James "Sailor" Ryan conducted by Perry Kaufman in 1975 for the Ralph Roske Oral History Project on Early Las Vegas. Ryan discusses moving to Nevada from Montana in 1935. Ryan describes his career as a construction laborer for the Hoover Dam (Boulder Dam) as well as later positions in construction. Ryan also details his involvement in politics and his position in the Nevada Assembly. Lastly, Ryan discusses gambling and the growth of Las Vegas, Nevada.

Oral history interview with Mary K. Rymer conducted by Mary Fitzgerald on May 04, 1977 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Rymer discusses her career as a nurse in Las Vegas, Nevada, which began at Clark County Hospital. Rymer tells several anecdotes of her experiences during her career, and discusses how hospitals have changed and evolved in Las Vegas. Rymer goes on to discuss her short retirement from nursing, before returning to the profession after being hired as a nurse for the Culinary Workers Union Local 226 in Las Vegas.

Oral history interview with Allen Sanders conducted by Julius Jones on July 06, 1975 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Sanders discusses arriving to Las Vegas, Nevada in 1943 in search of job opportunities. Sanders then recalls life in Las Vegas during World War II and describes the population increase after the war. Later, Sanders describes changes in the economy, society, and environment of Las Vegas, specifically the increase of hotels and casinos on the Las Vegas Strip.

Oral history interview with Grant Sawyer conducted by Perry Kaufman on May 12, 1972 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Sawyer discusses his campaign for Governor of Nevada and the differences between northern Nevada and southern Nevada social life. He then describes winning the election for Governor, the gaming industry, and explains why gaming was significant to his political career. Lastly, Sawyer discusses the Nevada Gaming Commission before and after he was Governor, and actions that he took against organized crime.

Oral history interview with Gene Segerblom conducted by Sheila K. Lefforge on March 24, 1976 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Segerblom discusses her personal history living in Boulder City, Nevada after moving there in 1940. Segerblom discusses teaching in Boulder City, the school system, what life was like in Boulder City, and the story behind alcohol legalization in Boulder City, after it was prohibited. Segerblom also discusses Boulder City's growth, how some locals would prefer the town to remain small, the political system in Boulder City, and the relationship between Boulder City and Las Vegas, Nevada.

Oral history interview with Marguerite Segretti conducted by Tommy Rendano on February 24, 1977 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Segretti discusses her personal history and life in Las Vegas, Nevada. Segretti discusses her career as the Clark County Democratic Central Committee Chairman, a position which she was serving in at the time of the interview, and politics on the local and national level. Segretti describes how Las Vegas has changed and expanded, life in Las Vegas, and the presence of religion in Las Vegas. Segretti also discusses sex work and prostitution in Las Vegas and the rest of Nevada, as well as misconceptions people have about the city.

Oral history interview with Melvin Eugene Serviss conducted by Juan Ortiz on February 26, 1979 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Serviss discusses his personal history in Missouri and Las Vegas, Nevada. Serviss describes going to clubs and meeting celebrities who were in Missouri for the filming of the movie Jesse James. Serviss also describes his time working for Harry S. Truman's political campaign to become Senator for the state of Missouri. Serviss discusses how he arrived to Las Vegas in 1930, the construction of the Hoover Dam, and how the city has changed and expanded.