Oral history interview with Dr. David Bruce Dill conducted by James Greene on December 20, 1974 for the Ralph Roske Oral History Project on Early Las Vegas. This interview covers physiological investigations regarding the operation and biological adaptations of people living in the desert environment of Southern Nevada, particularly in Boulder City and Nelson Township.

Oral history interview with Marjorie McManus conducted by an unknown interviewer on October 24, 1972 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, McManus discusses the history and differences betweeen Boulder City, Nevada and Las Vegas, Nevada. She talks about the differences in culture, education, and stances on political issues.