National Museum of Nuclear Science & History
Ralph Lawson worked for the United States Engineer District Office.
Joseph Caldwell was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
R. J. Guthrie worked for the Watson-Flagg Engineering Company.
Dr. Theodore “Ted” Magel (1918-2008) was an American metallurgist. After receiving his Ph.