National Museum of Nuclear Science & History
Sidney Williams was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
J. C. Rieder worked for the J.A. Jones Construction Company.
Reginald C. Augustine served in the Army Air Corps during World War II. In 1944, he was assigned to the Alsos Mission, the Manhattan Project’s counterintelligence mission in Europe to determine how far Nazi Germany had gotten on the path to building an atomic bomb.