National Museum of Nuclear Science & History
John Riddle was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
W. Stephens worked for the Roane-Anderson Company.
Leonard Quartararo was a staff worker at Los Alamos during the Manhattan Project.
W. Maddox worked in the shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Robin Thompson worked for the Tennessee Eastman Corporation at the Y-12 Plant.