The David Donovan Collection on Hydrology and Geology (1911-2011) is comprised of the research collected by former Las Vegas Valley Water District employee, David Donovan, about groundwater, hydrology, minerals, and geology in Nevada, as well as the surrounding areas of California, Arizona, and Utah. Included are reports, professional papers, maps, and books.
On March 4, 1976, Gordon Brusso interviewed former miner, Joe Lappin (born November 14th, 1914 in Santa Paula, California) about his life in Boulder City, Nevada. The two discuss his early occupational history and his work for the Bureau of Mines. He then goes on to explain the different housing systems that developed in Boulder City during World War Two.