National Museum of Nuclear Science & History
R. J. Guthrie worked for the Watson-Flagg Engineering Company.
W. J. Karraker worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Cornelius Ridner was a staff worker at Los Alamos during the Manhattan Project.
John E. Collins served as a sergeant in the 393rd Bombardment Squadron.
Hayes worked in the United States Engineer District Office.
