National Museum of Nuclear Science & History
Hamblin worked in the United States Engineer District Office.
Sergeant Frank Karcher was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Charles H. Hendren served in the 603rd Air Engineering Squadron.
Ernest Bray worked for the Roane-Anderson Company.
Anna Cox worked out of the DuPont Chambers Works plant in Carneys Point, New Jersey. Her contribution to the Manhattan Project included administrative work in the plant's transportation department, ensuring that tank cars had the proper bills of lading and ran in and out of the plant efficiently.
