National Museum of Nuclear Science & History
R. Y. Blackwell worked for the Fercleve 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.
Charles P. Baker was a nuclear physicist who worked at Los Alamos and Tinian during the Manhattan Project.