National Museum of Nuclear Science & History
S. D. McGee worked for the Edenfield Electric Company.
James Downey was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Harold Argo was a physicist. He worked at Los Alamos National Laboratory beginning in 1944. He was married to physicist Mary Argo.
Rolland Perry was a staff worker at Los Alamos during the Manhattan Project.
DeRenzis worked in the United States Engineer District Office.