National Museum of Nuclear Science & History
Hartman worked for Stone and Webster Engineering Corporation.
Chester J. Krajewski served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Top Secret.
Judd Nevenzel was a staff worker at Los Alamos during the Manhattan Project.
Calderwood worked at the 200 East Area at Hanford during the Manhattan Project.
