National Museum of Nuclear Science & History
P. F. Grieger worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Dorothy Wallace was a radiological physicist at the Chicago Met Lab during the Manhattan Project.
Mathias A. Klinger was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Jean Cooper was an engine mechanic in the 393rd Bomber Squadron of the 509th Composite Group serving in both Wendover, Utah and Tinian Island in the Pacific.