National Museum of Nuclear Science & History
Hannoch worked in the United States Engineer District Office.
Guy Covington served in the 1st Ordnance Squadron.
Marjorie Richmond was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Joel S. Canby served in the 509th Headquarters and Base Services Squadron.
Donald Engelkemeior was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
