National Museum of Nuclear Science & History
Dunbar worked in the United States Engineer District Office.
August “Gus” Knuth was a millwright and carpenter who helped construct Chicago Pile-1. He was present on December 2, 1942 when the pile went critical in the first self-sustaining chain reaction in history.
Whitesides worked for Stone and Webster Engineering Corporation.
John D. Hopper served as a civilian in Project Alberta.