Oral history interview with Cliff Luzier conducted by Jerry Masick on May 27, 1974 for the Ralph Roske Oral History Project on Early Las Vegas. Luzier discusses arriving to Las Vegas, Nevada to work on the Boulder (Hoover) Dam in 1932. Luzier also discusses his personal history and recalls experiencing the ways Las Vegas, Nevada has developed.

Oral history interview with Vera Renteria conducted by Dan West on February 11, 1972 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Renteria discusses arriving in Las Vegas, Nevada in 1928 in search of job opportunities and talks about the various jobs she held. Renteria then describes the Boulder Dam (Hoover Dam), recreational activities, and wildlife around the area.

The James Cashman Sr. Photograph Collection (approximately 1905 to 1975) consists of black-and-white photographic prints, negatives, slides, and albums as well as a glass plate negative. The photographs depict four major subjects: Cashman's family, friends, and associates; Cashman's businesses; the Hoover Dam and Colorado River; and various locations across Nevada.

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 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 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.

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.