National Museum of Nuclear Science & History
Lyda Speck served in the Women’s Army Corps at Los Alamos during the Manhattan Project. She later remembered “how tight the security was.
Mathias A. Klinger was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Agnes Gnaedinger was a chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.