National Museum of Nuclear Science & History
J. P. Hogan worked for Hanley & Company.
L. W. Nordheim worked for Clinton Laboratories at the X-10 Reactor.
H. G. Mullican worked for the J.A. Jones Construction Company.
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.
Sherwood Johnston worked for the Roane-Anderson Company.
