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.
Charles D. Coryell (1912-1971) was an American chemist. In 1942 Coryell left MIT and became Chief of the Fission Products Section of the Manhattan Project.
J. R. Pierson worked for the Tennessee Eastman Corporation at the Y-12 Plant.