Oral history interview with doctor Nancy Leveque conducted by Robin Wright on July 03, 1975 for the Ralph Roske Oral History Project on Early Las Vegas. The interview covers, among many wide-ranging topics, Leveque’s move to and away from Las Vegas, her career as a veterinarian, and the practice she and her then-husband built. Leveque also discusses how the city of Las Vegas has changed—environmentally and socially—, special interest groups and social activities, as well as natural phenomena. Throughout the course of the interview, Leveque provides anecdotes about prominent figures and old Las Vegas traditions, such as Helldorado.

Oral history interview with Jack LeVine conducted by Suzanne Becker on June 28, 2007 for the Voices of the Historic John S. Park neighborhood Oral History Project. LeVine discusses being a real estate agent and a gay man living in Las Vegas, Nevada since moving there in the 1980s.

Oral history interview with Daniel Leroy Lewis conducted by his son, Dan Lewis, on February 27, 1977 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Daniel Leroy Lewis discusses moving to Las Vegas, Nevada in May of 1953. Daniel Leroy Lewis describes life in early Las Vegas, Nevada as well as its history.

Oral history interview with John F. Lewis conducted by Steven John Galler on March 12, 1975 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Lewis describes founding Clark Dairy with his brother in Moapa Valley, Nevada.

Oral history interview with W.E. Butch Leypoldt conducted by Bruce Davidson on April 01, 1976 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Leypoldt describes life in early Las Vegas, Nevada after arriving in 1938. Leypoldt also briefly discusses being drafted in World War II and the city's reaction to the war.

Oral history interview with Robert H. Lias conducted by Verna M. Holley on March 02, 1976 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Lias describes life in early Las Vegas, Nevada after arriving in 1932, and his career as a postmaster.

Oral history interview with Polly F. Lilly conducted by Connie L. Patterson on March 26, 1976 for the Ralph Roske Oral History Project. In this interview, Lilly discusses a range of topics, from building a Catholic church in early Las Vegas, Nevada, to the nearby nuclear weapons tests. She also describes witnessing a confrontation between Senator Joseph McCarthy and Hank Greenspun on stage at the now demolished War Memorial Building in Las Vegas, Nevada.