National Museum of Nuclear Science & History
Butts worked for Stone and Webster Engineering Corporation.
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. L. Piker worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Chester G. McBride served in the 393rd Bombardment Squadron.