National Museum of Nuclear Science & History
John Smith was a guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
William S. Biggers worked as a chemical engineer during the Manhattan Project. Biggers worked at the the Houdaille-Hershey Plant in Decatur, Illinois from April 1944 to December 1946.
Winston Grice was a millwright at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Earl Pond, Jr. worked for the J.A. Jones Construction Company.