National Museum of Nuclear Science & History
Cummins worked in the United States Engineer District Office.
Addie Saunders was a laboratory assistant in the Chemistry Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Ignatius J. Esposito served in the 393rd Bombardment Squadron.
Samuel Allan Kline was a student majoring in physics at the University of Chicago before going to Los Alamos to work as a physicist.
Ralph C. Berger served in the 603rd Air Engineering Squadron.