Oral history interview with Jinx Cochrell conducted by Delroy Shigematsu on March 20, 1978 for the Ralph Roske Oral History Project on Early Las Vegas. Cochrell discusses the United States Navy, airports, Howard Hughes, the entertainment industry, Mount Charleston, Boulder (Hoover) Dam, her career as a secretary at the University of Nevada, Las Vegas, and the mob.

Oral history interview with Junior Craig conducted by Donald E. Bodkin on February 15, 1972 for the Ralph Roske Oral History Project on Early Las Vegas. Craig discusses bringing trucks in from Los Angeles, California to work on the building of the Davis Dam. Craig recalls being an active member of the member of the civil defense in Clark County, Nevada.

Oral history interview with Clark Crocker conducted by Monica Lehman on March 3, 1978 for the Ralph Roske Oral History Project on Early Las Vegas. Crocker discusses his family and educational background as well as his experiences attending school in California and Massachusetts. Crocker then describes the building of the Hoover Dam and his career as a teacher and school principal, as well as his thoughts and philosophies on how curriculum should be structured in schools. Crocker also discusses his work for the fire department in Pahrump, Nevada and his career as a frogman and navigator for the United States Navy during World War II.

Oral history interview with Ruth and Jake Dieleman conducted by James M. Greene on November 15, 1974 for the Ralph Roske Oral History Project. The Dielemans discuss their life in Southern Nevada. Ruth first talks about growing up in Searchlight, Nevada, and her experiences as an educator. Jake discusses immigrating to the United States and working in construction rigging at the Hoover Dam. He also discusses his work in various Las Vegas, Nevada casinos and in the state legislature.

Oral history interview with Harvey N. Dondero conducted by Iskandar A. Batlouni on February 26, 1981 for the Ralph Roske Oral History Project on Early Las Vegas. Dondero discusses relocating to Las Vegas, Nevada in 1931 to teach at Las Vegas High School. Dondero also discusses the Boulder (Hoover) Dam, the gaming industry, school integration, the Westside, the Strip, Howard Hughes, Block 16, and the growth of Las Vegas from a sleepy railroad town to a thriving metropolis.

Oral history interview with Kenneth Ousley conducted by Patricia van Betten on October 02, 2009 for the History of Blue Diamond Village in Nevada Oral History Project. In this interview, Ousley discusses his personal history and moving to Blue Diamond, Nevada with his family. He talks about the work his father did as a miner at the Blue Diamond Mine and describes life in the village during the 1930s. Ousley recalls his visits to Las Vegas, Nevada and the construction of Boulder Dam (Hoover Dam). Lastly, Ousley talks about Cottonwood Ranch and the Blue Diamond school.

The Henry C. Wieking Photograph Collection contains black-and-white photographic prints and negatives, as well as postcards of Las Vegas, Nevada between approximately 1920 and 1940. These images primarily depict Wieking and his family in front of the Las Vegas Mormon Fort and Hoover Dam (Boulder Dam). Other photographs include Six Companies and United States Bureau of Reclamation vehicles, Mount Charleston, the Colorado River, Black Canyon, and desert scenes. The remaining images depict Barstow and Death Valley, California; and a Grand Canyon bridge in Arizona.