Oral history interview with Dr. James B. McMillan conducted by Perry Kaufman on April 14, 1972 for the UNLV University Libraries Oral History Project. In the interview, McMillan discusses his childhood in Aberdeen, Mississippi and his parents' experience with racial discrimination. He then talks about his own experiences with racial discrimination while living in Las Vegas, Nevada. McMillan recalls his involvement with the National Association for the Advancement of Colored People (NAACP), and the tension between community leaders and local politicians including Pat McCarran and John Russell. McMillan discusses integration and white power structures and how they affect the Black community in Las Vegas. Lastly, he discusses his relationship with other Black activists and figures in the community, including Dr. Charles West, Bob Bailey, Lubertha Johnson, and Mabel Hoggard.

Oral history interviews with Merle Frehner conducted by Elisabeth Nelson Patrick January 17, 1981 and January 19, 1981 for the UNLV University Libraries Oral History Collection. In the first interview, Frehner talks about his upbringing in Littlefield, Arizona and moving to St. Thomas, Nevada. He talks about driving heavy-duty freight wagons, transporting mining supplies, and the formation of a school district in St. Thomas. Frehner remembers the entertainment in St. Thomas during the 1920s, recreational activities, and commuting to Overton, Nevada to attend high school. Lastly, Frehner describes the local businesses in St. Thomas, miners residing in the town, and the town’s growing popularity after the construction of Arrowhead Trail (U. S. Highway 91). In the last interview, Frehner discusses transporting produce to Las Vegas, Nevada and Tonopah, Nevada during the late 1920s, the construction of Hoover Dam, and Lake Mead water levels overtaking St. Thomas.

The J. Ross Clark Scrapbook dates from approximately 1897 to 1972 and consists of newspaper clippings collected by his wife, Miriam Evans Clark. The clippings relate to professional events in the lives of J. Ross Clark and his brother, Senator William A. Clark. A small number of the clippings refer to births, marriages, and deaths in Miriam Evans and J. Ross Clark's families. Also included are documents written by J. Ross Clark's grand-niece, Dorothy Murdock Dunkley, that offer additional information about the Clark and associated families.

The Nevada Consolidated Copper Company Records (approximately 1907-1978) contain the business records of the company, including correspondence, freight bills, ledgers, maps, leaching data, and books relating to mining. The majority of the records post-date the company's name change to Kennecott Mining Company.