National Museum of Nuclear Science & History
Groht worked for Stone and Webster Engineering Corporation.
William E. Smith served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Straight Flush.
H.A. Fettinger was a junior physicist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
J. W. Moss worked for the Union Carbide & Carbon Corporation.