National Museum of Nuclear Science & History
Robert Ball was a security guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Cordell W. Callahan served in the 1st Ordnance Squadron.
Marion Long worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Edith (Goldfarb) Sabshin was a junior physicist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.