National Museum of Nuclear Science & History
Gagen worked in the United States Engineer District Office.
Kopanski worked at the 200 East Area at Hanford during the Manhattan Project.
Okey B. Ellison was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Fiedler worked in the United States Engineer District Office.
Dr. Margaret W. Neuman worked as a biochemist during the Manhattan Project at the University of Rochester.
