National Museum of Nuclear Science & History
M. R. Pierce worked for the Kellex Corporation at the K-25 Plant.
Thomas Cowley was a Military Policeman assigned to Post Security at Los Alamos, New Mexico during the Manhattan Project.
Ruan worked for Stone and Webster Engineering Corporation.
Lawrence S. O’Rourke began working on the Manhattan Project at Columbia University after he was called up from the Army Reserves in 1943.
C. G. Fellows worked for the Union Carbide & Carbon Corporation.