National Museum of Nuclear Science & History
Magdaline Penny worked for the United States Engineer District Office.
Lillian Guadagna was a technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
J. S. Hart worked for the Tennessee Eastman Corporation at the Y-12 Plant.
E. P. Graham worked for the Tennessee Eastman Corporation at the Y-12 Plant.
