National Museum of Nuclear Science & History
A. R. McCallum worked for the United States Engineer District Office.
Barger worked in the United States Engineer District Office.
Pettengill served in the 393rd Bombardment Squadron.
C. F. Fitter worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Peggy Stuart worked as a “Calutron girl” at the Y-12 Plant during the Manhattan Project.