National Museum of Nuclear Science & History
E. L. Wagner worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Celia Szapka Klemski was working as a secretary for the State Department in Washington, DC when she was transferred to Manhattan to work on the Manhattan Project in 1942.
Charles Russell Dickson worked for the Manhattan Project civilian contractor Tennesee Eastman Corporation as an administrative assistant from 1943 to 1946.