National Museum of Nuclear Science & History
Harold Payne worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Roman Vigil was a staff worker at Los Alamos during the Manhattan Project.
Ed Helfenberger worked for the Roane-Anderson Company.
Floyd Jessee was a member of the Military Police at Los Alamos.
Mary Tinsley was a laboratory techinician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.