National Museum of Nuclear Science & History
Breyer worked in the United States Engineer District Office.
Benjamin D. Davison served in the 393rd Bombardment Squadron.
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.
Paul Duga served in the 1st Ordnance Squadron.