National Museum of Nuclear Science & History
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.
Yive J. Ping served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Straight Flush.
