Oral history interview with Ethel S. Hatch conducted by P. Kohlman on November 24, 1975 for the Ralph Roske Oral History Project on Early Las Vegas. This interview covers the history of Las Vegas from 1939 to 1975. Mrs. Hatch also talks about ranching in Nevada, Rex Bell, development on the Strip, the first hotels, and early local shopping culture. The interview concludes with discussion surrounding tree-lined streets, the Helldorado Club, and Fremont Street.

The Downtown Project Marketing Materials (2013-2014) are comprised of publications pertaining to the Downtown Project in Las Vegas, Nevada. The collection includes issues of the weekly publication Downtown Project and two press kits promoting the variety of events, restaurants, and meeting places in the Downtown Project area.

Oral history interview with John Hirsch conducted by Shannon Morrison on March 20, 1978 for the Ralph Roske Early Las Vegas Oral History Project. Hirsch discusses his personal history, experiences in Las Vegas, Nevada, and his thoughts on the types of changes the city went through since his move to the city in 1937.

Oral history interview with Leo Dunbar conducted by Dennis McBride on June 16, 1986 for the Boulder City Library Oral History Project. In this interview, Dunbar gives a brief history of the Bureau of Reclamation (Bureau of Land Management) and the beginning of his life-long career with that agency, first working on two major projects in Colorado. He then discusses how The Six Companies won their bid to build the Hoover Dam, the establishment of the federal reservation that would house Boulder City, and the growth and development of both the city and the dam project.

Oral history interview with Charis Robbins conducted by Steven J. Syzdek on March 17, 1978 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Robbins describes her early life living in various towns in California during the early 1900s, namely Silver Peak, California, before moving to Las Vegas, Nevada in 1943.