National Museum of Nuclear Science & History
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.
Bill Hartnett worked in plutonium metallurgy for the Manhattan Project at the Hanford Engineer Works from January 1943 to December 1946.
Marvin D. Cooke worked for the J.A. Jones Construction Company.