National Museum of Nuclear Science & History
Mary Raub was a staff worker at Los Alamos during the Manhattan Project.
A. T. Helgerson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Daniel D. Friel was a chemical engineer for the DuPont Company who joined the Manhattan Project at the University of Chicago in 1943.
W. R. Studhalter worked for the United States Engineer District Office.
