On February 10, 1977, Frederick Dougan interviewed Russell Grater (born 1907 in Lebanon, Indiana) about his career in the U.S. National Park Service. Grater first talks about his move to the Southern Nevada area and his work that impacted the Hoover Dam project. He then talks about the town of St. Thomas, Nevada, the Lost City, and the activities of tourists. Grater also talks about his work in excavation, the indigenous American Indian tribes of the area, findings on petroglyphs, and the types of wildlife that were found in the area. He later talks about findings related to fossils, gold mining, the effects of World War II on the dam project, and vegetation in the area.

On November 25, 1974, collector James M. Greene interviewed Russell K. Grater (born November 16th, 1907 in Lebanon, Indiana) in his home in Boulder City, Nevada. This interview offers an overview of the United States Park Service. Mr. Grater also offers an overview on the history of housing developments in the Las Vegas Valley and Nelson Township. The interview concludes with discussion on the leaf system of local plants.

On February 7, 1977, collector Enrico Messina interviewed Edith Leavitt (born April 12th, 1924, in St. George, Utah) at her home in Las Vegas, Nevada. In this interview, Mrs. Leavitt talks about teaching in Southern Nevada, including in the Virgin Valley and in Las Vegas. She also discusses the changing education system in Southern Nevada during her time as an educator.