National Museum of Nuclear Science & History
W. S. Freeman worked for the J.A. Jones Construction Company.
A. O. Groth worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Nelen Supert was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Arthur Harold Jaffey was an associate chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
