National Museum of Nuclear Science & History
Harry Reason was a janitor at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Christiansen worked at the 100-B Area at Hanford during the Manhattan Project.
Alan E. Florin was a research associate in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
H. W. Caldwell worked for the Edenfield Electric Company.
Robert Whitcomb worked for the Kellex Corporation at the K-25 Plant.