National Museum of Nuclear Science & History
Mark Fred was a research assistant in the chemistry division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Dorothy worked at Oak Ridge during the Manhattan Project as a “calutron girl.” After her brother was killed in the attack on Pearl Harbor, she was eager to join the war effort, and did so starting in 1944.
A. L. Longshore worked for the United States Engineer District Office.
