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.