Oral history interviews with Harry Mortenson conducted by Claytee D. White on April 08, 2014, April 22, 2014, and May 06, 2014 for the Boyer Early Las Vegas Oral History Project. In the first interview, Mortenson discusses his personal background, working at Los Alamos National Laboratory in New Mexico, and arriving to Nevada to work as a nuclear physicist at the Nevada Test Site. Mortenson describes his work and recalls anecdotes from his employment. He then talks about his company, Sigma Scientific, and explains the different projects where he worked as a consultant. In the second interview, Mortenson discusses the methods of transportation used to arrive to the Nevada Test Site, his involvement with different organizations, and his tenure in the Nevada State Legislature. In the final interview, Mortenson discusses the device he built to take photographs of the nuclear reactor cores at Las Alamos National Laboratory, and explains how that device worked.

Oral history interview with Charlotte Ellsworth conducted by Jane Ellsworth Olive on March 22, 1977, December 26, 1980, December 28, 1981, and August 06, 1987 for the Ralph Roske Oral History Project on Early Las Vegas. In the span of four interviews, Ellsworth discusses her family’s history, the growth of Henderson, Nevada, working at the Basic Magnesium Plant, and life during World War II. She also talks about war bond drives, the Oakey Theaters, Nevada Chamber of Commerce, "western" clothes, and hotels like the Flamingo Hotel and the Riviera Hotel. She then describes visiting places like Canada, Salt Lake City, Utah, Washington, D. C., and San Francisco, California.