National Museum of Nuclear Science & History
G. Tolson worked for the Roane-Anderson Company.
Mathias A. Klinger was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
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.
A. M. Brown worked for the Watson-Flagg Engineering Company.
