National Museum of Nuclear Science & History
Daniel D. Friel was a chemical engineer for the DuPont Company who joined the Manhattan Project at the University of Chicago in 1943.
S. A. Wrightman worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Arthur was a staff member at Los Alamos during the Manhattan Project.
Frank Watson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
