National Museum of Nuclear Science & History
Edith Levin worked for the United States Engineer District Office.
C. H. Pearson worked for the Kellex Corporation at the K-25 Plant.
Neil Bergen was a security guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Waldo F. Christy was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
