National Museum of Nuclear Science & History
S. A. Wrightman worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Harold F. Seaman served in the 603rd Air Engineering Squadron.
George Mallinckrodt was a physicist at the Manhattan Project’s Los Alamos, NM facility. He also worked at Argonne National Laboratory, the successor of the University of Chicago’s Metallurgical Laboratory (“Met Lab”).
