Oral history interview with Helen Manix conducted by James M. Greene on December 06, 1974 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Manix talks about the history of Boulder City, Nevada. She specifically talks about living conditions and her role as a mother in early Boulder City. She also talks about the Boulder (Hoover) Dam construction.

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 Joseph and Mildred Kine conducted by Jay Brewer on April 29, 1975 for the Ralph Roske Oral History Project on Early Las Vegas. The Kines discuss Boulder City, Nevada and the construction of Boulder (Hoover) Dam. The interview concludes with discussion surrounding Army camps and living conditions.

The William Mors Audiovisual Collection (approximately 1989-2001) contains material created by William Mors Productions and the Las Vegas History Foundation. Subjects include Hoover Dam, entertainment in Las Vegas, Liberace, and the history of Las Vegas. The collection consists of vhs tapes, U-Matic tapes, betamax, and other formats and are originals, masters, edited masters, clips, and final production tapes.