National Museum of Nuclear Science & History
H. R. Grady worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Mary Whidden was a staff worker at Los Alamos during the Manhattan Project.
T. E. Fant worked for the Roane-Anderson Company.
Nathan Safferstein (1921-2013) was an American counterintelligence agent during the Manhattan Project.
Robert Schedvin worked for the United States Engineer District Office.