Oral history interview with Mary Sparrow conducted by Robert Tolbert on March 20, 1976 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Sparrow discusses her career as a telephone operator and the history of Las Vegas, Nevada. Sparrow describes her duties as an operator before the advent of the dial system, the growth of Las Vegas, and life in the city during the 1950s.

Oral history interview with James M. Lancaster conducted by Linda Voorvart on March 04, 1980 for the Ralph Roske Oral History Project on Early Las Vegas. Lancaster explains how he first came to Southern Nevada from Mexico and Cuba. Lancaster then goes on to explain his occupational history as a senior safety engineer and power plant operator, and the different jobs that he held in Southern Nevada, specifically at the Nevada Test Site.

Oral history interview with George Gilbert conducted by Ruth Guidi on February 10, 1975 for the Ralph Roske Oral History Project on Early Las Vegas. Gilbert first talks about his education in Las Vegas, Nevada, life during World War II, the shopping facilities, casinos, churches in Las Vegas, and the Helldorado parades.

Oral history interview with Clifford Jones conducted by an unknown collector in the year 1974 for the Ralph Roske Oral History Project on Early Las Vegas. Jones discusses his life in Southern Nevada, his educational background, and his involvement in Nevada politics. Jones also talks about the social and environmental changes that occurred in Las Vegas, Nevada since the 1930s.

Oral history interview with Charlie McLean conducted by Lisa Gioia-Acres on December 14, 2007 for the All That Jazz Oral History Project. McLean discusses making a living playing for the Ice Capades—traveling entertainment shows featuring theatrical ice skating performances—and in jazz bands after graduating from college. He also discusses moving to Las Vegas, Nevada in 1960 and playing at hotels such as the Frontier, Desert Inn, Riviera, Sahara, and the Tropicana.

Oral history interview with Ethel Matteucci conducted by Tom Matteucci on March 10, 1978 for the Ralph Roske Oral History Project on Early Las Vegas. Ethel talks about being chased out of Mexico for being Mormon colonizers and later arriving to Nevada. Ethel later talks about the first casinos that were built in Las Vegas, Nevada.

Oral history interview with Juan Saa conducted by David G. Schwartz on November 21, 2016 for the Slot Operations Oral History Project. Saa discusses his start in the technical side and his eventual move into an operational role in the casino industry. He talks about his experience as a director, specifically the responsibilities involved, and the type of staff being supervised. Saa then describes what he believes are the biggest changes in the slot industry, specifically with ticket-in, ticket-out (TITO); and slot analysis.