Oral history interview with Leo Dunbar conducted by Connie Degernes and Helen Littleton on February 24, 1975 for the Ralph Roske Oral History Project on Early Las Vegas. Dunbar discusses the construction of Boulder (Hoover) Dam.

Oral history interview with Bob Gronauer conducted by Stefani Evans and Claytee D. White on October 27, 2016 for the Building Las Vegas Oral History Project. In this interview, Gronauer discusses his early life in Wilkes-Barre, Pennsylvania and describes living in subsidized housing. He talks about moving to Las Vegas, Nevada in 1989, his employment with Las Vegas Paving, and his involvement with building the Luxor Hotel and Casino. Gronauer then recalls doing the master plans for the Iron Mountain Ranch community in the late 1990s, his contributions to the development of public parks, and developing master plans for North Las Vegas communities. Lastly, Gronauer discusses location planning for new projects and obtaining support from home owners and elected officials.

Oral history interview with George Kavanaugh conducted by Iolanthe Bruton on February 25, 1973 for the Ralph Roske Oral History Project on Early Las Vegas. Kavanaugh discusses arriving in Las Vegas, Nevada and taking part in politics and gambling. Kavanaugh later talks about the Magnesium Plant in Henderson, Nevada as well as the atomic bomb testing.

Oral history interview with Betty Kramer conducted by Kathy Wheat on March 02, 1973 for the Ralph Roske Oral History Project on Early Las Vegas. Kramer talks about the development of Henderson, Nevada and shares the significance of the Basic Magnesium Inc. (BMI) to the Las Vegas, Nevada community. Kramer also talks about the societal change in Las Vegas, Nevada when gambling became legal, and the growth of the city at large.

Oral history interview with Robert F. Gilbert conducted by Rosemary Howe on February 2, 1972 for the Ralph Roske Oral History Project on Early Las Vegas. Gilbert first talks about his educational background in Las Vegas, Nevada. He then talks about his political involvement, activity in social clubs, early air conditioning, and the illegal production of whiskey. He also talks about the Helldorado Parade, railroad activity, and early policing practices in Las Vegas.

Oral history interview with Bob Campagna conducted by Kathleen Neumann on March 17, 1978 for the Ralph Roske Oral History Project on Early Las Vegas. Bob (Bobby) Campagna (b. September 18, 1950 in Pittsburg, Pennsylvania) talks about the history of Nevada. During the interview, Bobby discusses hotels, schools, city recreation, and Lorenzi Park. He also describes relocating to Las Vegas, his goals in life, and his life in Nevada.