National Museum of Nuclear Science & History
Harold Powell worked for the United States Engineer District Office.
A. L. Smith worked for the J.A. Jones Construction Company.
Herbert E. Kubitschek (1920-1989) was an American biologist and physicist. He studied under Enrico Fermi at the University of Chicago and was present when Chicago Pile-1, the world’s first self-sustained nuclear chain reaction, went critical on December 2, 1942.
