Oral history interview with David Bruce Dill conducted by Luise A. Soholt on March 13, 1975 for the Ralph Roske Oral History Project on Early Las Vegas. Bruce Dill discusses his experience as a researcher in physiology, specifically in Boulder City, Nevada. Dill first discusses his educational background, studies done around the world, and his interest in the effects of heat on the workers of Boulder Dam. He then discusses the topics and findings of some of his studies, including one on heat cramps and one on a comparison between sweating in a dog versus in a human.

Oral history interview with Isabella Jessie Curtis conducted by Andrew B. Levy on February 15, 1979 for the Ralph Roske Oral History Project on Early Las Vegas. Curtis first talks about her career in waitressing at several restaurants and casinos in Las Vegas, Nevada. She also discusses her involvement in politics, her early recreational activities, and the atomic testing. Curtis then describes living in Sandy Valley, Nevada, and some of her first memories of the Union Pacific train depot in Las Vegas.

Oral history interview with Ray M. Cutright conducted by himself on April 22, 1981 for the UNLV University Libraries Oral History Collection. Cutright talks about his experiences in operating a boat that carried both tourist passengers and workers to and from the site of the Hoover Dam. He also discusses a few specific experiences, including what it was like navigating the river.

Oral history interview with John and Mabel Dillingham conducted by John F. Sonny Le Jeune on March 19, 1978 for the Ralph Roske Oral History Project on Early Las Vegas. John discusses work on the railroad, the development of the city, and their living conditions when first moving to Las Vegas, Nevada. Mabel discusses prominent members of the community, recreational activities, church membership, and popular attractions around Las Vegas.

Oral history interview with Betty Ham Dokter conducted by Roger Jablonski on February 27, 1977 for the Ralph Roske Oral History Project on Early Las Vegas. Dokter describes church activity and the first casino properties that were built. She later talks about presidential visits, economic changes in Nevada, and the construction of Hoover Dam. The latter part of the interview covers the topics of racial minorities, as well as social and environmental changes.

Oral history interview with Kathryn Domenick conducted by Richard Colanduno on February 29, 1980 for the Ralph Roske Oral History Project on Early Las Vegas. Domenick discusses atomic testing, politics, the Pony Express, and the economic slump in Las Vegas, Nevada. Domenick also talks about population changes and the political climate of Las Vegas.

Oral history interview with Harvey N. Dondero conducted by Elizabeth N. Patrick on August 9, 1984 for the Ralph Roske Oral History Project on Early Las Vegas. This interview consists of Dondero's address before the Kiwanis Club during a luncheon meeting at the Fremont Hotel in Las Vegas, Nevada. Dondero gives observations on the growth of the education system in Las Vegas. He also answers questions after the address by audience members regarding the future of Nevada’s education system.