National Museum of Nuclear Science & History
M. R. Pierce worked for the Kellex Corporation at the K-25 Plant.
Robert A. Berardo served in the 509th Headquarters and Base Services Squadron.
George Hyde was a chemist assigned to the Y-12 Plant in Oak Ridge, Tennessee from February 1944 to the end of the war.
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.
M. S. Cressy worked for the Fercleve Corporation.
