Oral history interview with Vera Renteria conducted by Dan West on February 11, 1972 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Renteria discusses arriving in Las Vegas, Nevada in 1928 in search of job opportunities and talks about the various jobs she held. Renteria then describes the Boulder Dam (Hoover Dam), recreational activities, and wildlife around the area.

Oral history interview with Louise Riley conducted by Bryan Neel on March 27, 1979 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Riley discusses her life after moving to Boulder City, Nevada in 1946, and later moving to Las Vegas, Nevada. Riley describes dates with her husband on the Las Vegas Strip, which included visiting clubs or watching Liberace perform. Riley also discusses her husband's job as an accountant at the Hoover (Boulder) Dam, as well as briefly discussing her experiences viewing nuclear weapons tests.

Oral history interview with F. Lorin Ronnow conducted by Mindy Braver on March 11, 1981 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Ronnow discusses his personal history in Las Vegas, Nevada after being hired by the Union Pacific Railroad to play for their baseball team in 1928. Ronnow discusses being a hoisting engineer during the construction of the Hoover Dam, the economic benefit of the dam during the Great Depression, and his own business ventures in Las Vegas. Ronnow describes his career in banking, how Las Vegas has changed, and prominent celebrities coming to Nevada to divorce. Ronnow also discusses occupational discrimination against African Americans and women.

Oral history interview with Jack Ruggles Sr. conducted by Donald Parker on March 15, 1978 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Ruggles describes moving to early Boulder City, Nevada in 1931 as a child due to his step-father's supervisory job at the Hoover (Boulder) Dam. Ruggles describes life in Boulder City and later becoming a construction worker and helping to build the Basic Magnesium Plant in Henderson, Nevada. Ruggles goes on to discuss his career and experiences as a police officer in Las Vegas, Nevada. During the discussion of his career as a police officer, Ruggles describes his participation in maintaining racial segregation in casino properties for casino owners.

The collection consists of one three-cent United States (U.S.) postage stamp from 1935 featuring Boulder Dam, located on the Arizona-Nevada border.

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.

The Alan Byron Olson Photographs (approximately 1933) consist of one negative album containing 100 photographic negatives taken by Alan Byron Olson around 1933 that depict the Hoover Dam (then known as Boulder Dam) and the Boulder City Hospital. Olson was a medic for the Boulder City Hospital and the images also depict various hospital staff and other locations related to Hoover Dam. The collection also includes digital copies of the negatives.