National Museum of Nuclear Science & History
C. H. Simpson worked for Clinton Laboratories at the X-10 Reactor.
Opal MacDonald was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Thomas J. Weimer served in the 393rd Bombardment Squadron.
Dorothea Sacher was a non-techical staff worker at the Metallurgical Laboratory in Chicago during the Manhattan Project.
