National Museum of Nuclear Science & History
Mathias A. Klinger was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Johnston worked at the 300 Area at Hanford during the Manhattan Project.
James Osborn was a member of the Special Engineering Detachment at Los Alamos.
Christiansen worked at the 200 West Area at Hanford during the Manhattan Project.
