National Museum of Nuclear Science & History
Howard Gest worked for Clinton Laboratories at the X-10 Reactor. Gest was one of the scientists who signed Leo Szilard’s petition against the use of the atomic bomb.
Henry Barwick worked as a plumber, pipefitter, and steamfitter during the building of the Y-12 plant at Oak Ridge.
C. O. Hubbard worked for the Roane-Anderson Company.
Margaret Caldes moved to Los Alamos when her husband, William E. Caldes, was recruited to join the project in 1943.