National Museum of Nuclear Science & History
Kenneth L. Cohn was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Caldwell worked at the 200 West Area at Hanford during the Manhattan Project.
Carl C. Mason served as a private first class in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Up An’ Atom.
Chellis worked for Stone and Webster Engineering Corporation.
