National Museum of Nuclear Science & History
F. F. Brown worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Carl Kaddatz served in the 1st Ordnance Squadron.
Harry Reason was a janitor at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Daniel D. Friel was a chemical engineer for the DuPont Company who joined the Manhattan Project at the University of Chicago in 1943.
