National Museum of Nuclear Science & History
J. R. Hatfield worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Breyer worked in the United States Engineer District Office.
Roberta A. Edwards was a lab technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Clarence M. Shepler served in the 393rd Bombardment Squadron.
Mary Whidden was a staff worker at Los Alamos during the Manhattan Project.
