National Museum of Nuclear Science & History
Joseph Caldwell was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Winifred T. Koziolek was a laboratory technician the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
G. M. Jones worked for the Edenfield Electric Company.
Edwin Halbur served in the 1395th Military Police Company, Aviation.
