The William Hillman Shockley Photograph Collection (1875-1925, 1951) contains black-and-white photographs documenting mining operations at the Mount Diablo Mine and Millworks in Candelaria, Nevada. It also includes photographs of nearby operations including the Northern Belle Mine and the Princess Mill. The collection contains photographs of Shockley, his son, William Bradford Shockley, as an infant, as well as images of Shockley’s brothers, Walter A. Shockley and George Shockley.

The Josephine A. Johnson Diaries (approximately 1940-1978) consist of the personal diaries of Josephine Johnson, a homemaker who moved to Las Vegas, Nevada in 1952. Included in the daily handwritten entries are prices of goods and services, shops and businesses frequented by the family, anecdotes about the weather, and some receipts, notes, and ephemera kept inside the diaries. Also included are two Bibles and a small personal phonebook.

The Sadie and Hampton George Papers (1874-1948) consist primarily of the incoming and outgoing correspondence of Sadie Kiel George and her husband, Hampton George, regarding proposed land and mineral rights sales. The collection also includes some personal correspondence, and two of the most significant letters in the collection deal with the deaths of brothers William and Edward Kiel, Sadie's uncles, who were found dead at the Kiel Ranch in October 1900. Also included in the collection are receipts, cancelled checks, tax notices, mining claims, and land deeds.

The Wilson Family Papers (1875-1918) document the personal and professional lives of James B. Wilson Sr., James B. Wilson Jr., and George Twison "Tweed" Wilson, early pioneers in Southern Nevada. The collection is comprised of personal correspondence, invoices and advertisements from the Wilson family business, the Sandstone Ranch, and photographs of the extended Wilson family.