National Museum of Nuclear Science & History
Marie Sperling was a staff worker at Los Alamos during the Manhattan Project.
Harold B. Nilling was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
J. R. Conway worked for the Tennessee Eastman Corporation at the Y-12 Plant.
J. V. Hubbard worked for the Tennessee Eastman Corporation at the Y-12 Plant.