National Museum of Nuclear Science & History
C. A. Cooper worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Mathias A. Klinger was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Ruth Hoffberg was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Willard H. Richardson served in the First Ordnance Squadron.
