National Museum of Nuclear Science & History
Fredrika Lewis was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
A. O. Seidel worked for the Asbestos & Magnesia Materials Company.
I. A. Rathburn worked for the Edenfield Electric Company.
John H. Witherell served in the 320th Troop Carrier Squadron.
