National Museum of Nuclear Science & History
Mary New was a staff worker at Los Alamos during the Manhattan Project.
J. J. Combes worked for the Kellex Corporation at the K-25 Plant.
Donald Engelkemeior was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
C. E. David worked for the Tennessee Eastman Corporation at the Y-12 Plant.