National Museum of Nuclear Science & History
Colonel Elmer Ellsworth Kirkpatrick, Jr. was a United States Army Corps of Engineers Officer and a Manhattan Engineering District Deputy Engineer.
Moyer 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.
