National Museum of Nuclear Science & History
H. H. Maples worked for the Roane-Anderson Company.
S. C. Barnett worked for the Union Carbide & Carbon Corporation.
Michael Cefola was an American chemist and a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Thomas Little was a millwright for the civilian contractor Tennessee Eastman Company from 1944 to 1946.