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.
Albert G. Barsumian served as a sergeant in the 393rd Bombardment Squadron. He was the radar operator on the Straight Flush during the Hiroshima mission.
