National Museum of Nuclear Science & History
L. J. Koch worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Helene Smith was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Charles Henrich was a member of the Military Police at Los Alamos and worked as a tech sergeant.
Clyde Fiddler was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
