Oral history interview with John Cannito conducted by Stefani Evans on April 03, 2018 for the Building Las Vegas Oral History Project. In this interview, Cannito discusses his early life and constantly moving to different states during his youth. He talks about his father’s employment with Amtrak, train transportation, and joining Perini Construction in Phoenix, Arizona. Cannito describes the role of an engineer in a construction company, and co-founding a software development company. Later, Cannito recalls joining The PENTA Building Group, the projects he was involved with, and becoming Chief Operating Officer. Lastly, Cannito discusses the company’s relationship with Native American-owned casinos, and the importance of maintaining long-term relationships with clients.

Oral history interview with Robert M. Tubb conducted by Robert B. Grzywacz on March 01, 1975 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Tubb discusses moving to Nevada in 1907. He describes his early life and his father's career on the railroad, as well as the time he spent living in Ash Meadows Spring, Nevada and Death Valley. Tubb also goes into detail about his education and the growth of Las Vegas, Nevada.

Oral history interview with Howard Wasden conducted by Gillian Collins on an unknown date in the 1970s for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Wasden discusses arriving in Las Vegas, Nevada in 1925 and working for the railroad. Wasden explains how the railroad was a predominant economic asset for Las Vegas at the time. He then describes living on the Westside "Old Town", education in Las Vegas, attending the University of Nevada, Reno, and eventually becoming a teacher. Lastly, Wasden discusses the population growth, development of the Las Vegas Strip, and his role as principal of West Charleston School.

Oral history interview with Fred O. Wharton conducted by William B. Stabler on March 10, 1976 for the Ralph Roske Oral History Project on Early Las Vegas. Wharton describes the United States Air Force base in Tonopah, Nevada that was used to train B-29 bomber pilots during World War II. He also describes mining in Tonopah and in the greater Nye County, Nevada area, including what kinds of metals they mined and the processes used to extract them. Lastly, Wharton discusses the history of the railroads in Nye County, living in rural Nevada, and how Tonopah has changed.

Oral history interview with Paul M. Lytle conducted by James Greene on December 19, 1974 for the Ralph Roske Oral History Project on Early Las Vegas. In the interview, Lytle discusses moving to Boulder City, Nevada in 1936 to work as a Boulder (Hoover) Dam guide. Lytle also discusses his early life moving around Nevada, his family, his experiences with railroad freight cars, Boulder Highway's road conditions and roadside stores, and his service in the United States Army during World War II.

Oral history interview with Jeff McColl Sr. conducted by Dennis L. Weigang on March 09, 1976 for the Ralph Roske Oral History Project on Early Las Vegas. In the interview, McColl discusses his early life moving back and forth between California, Nevada, and Texas before settling in Las Vegas, Nevada in 1925. McColl also discusses his work as a locomotive engineer for the Union Pacific Railroad Company, life in Las Vegas during the late 1920s and 1930s, and industrial and urban growth in Las Vegas.

The J. Ross Clark Photograph Collection (approximately 1900-1920) consists of black-and-white photographic prints and some corresponding negatives. Images depict J. Ross Clark, his wife Miriam Evans Clark, their grandson James Ross Clark II, and several unidentified individuals.