On February 12, 1975, collector Marilyn Swanson interviewed housewife, Mrs. Helen H. Holmes (born Helen Hanson on February 24th, 1906, in Harrison, Nebraska) in her home in Boulder City, Nevada. This interview covers the social, economic, and environmental changes that occurred in Boulder City from 1931 to 1975. Mrs. Holmes also discusses home and family life in Nevada.

On June 24, 1975, collector Donna Mattson interviewed native Nevadan mechanic, Stephen La Thair Hawley, (born October 15th, 1936, in Ely, Nevada) in his home in Las Vegas, Nevada. This interview offers a historical overview of early Las Vegas including gambling and an in-depth discussion on local economic, environmental, and social changes.