National Museum of Nuclear Science & History
R. F. Ridgeway worked for the Roane-Anderson Company.
George Lindquist worked for the H. K. Ferguson Company.
Stanley Krzyck was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Sheffield Gordon was an associate chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
