National Museum of Nuclear Science & History
Walker worked at the 300 Area at Hanford during the Manhattan Project.
Robert J. Stock served as a sergeant in the 393rd Bombardment Squadron. He was regularly assigned as a tail gunner to the Bockscar, but did not fly on that plane during the Nagasaki bombing mission in August of 1945.
Robert L. McNamee served as a sergeant in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Bockscar.
Clair Tellefson was a staff worker at Los Alamos during the Manhattan Project.