National Museum of Nuclear Science & History
T. O. Dean worked at the 200 East Area at Hanford during the Manhattan Project.
Gilbert Mathis was an electrical engineer at Los Alamos from 1943 to 1946. He was recruited for the Manhattan Project as a member of the US Army Signal Corps.
Bradley worked in the United States Engineer District Office.
Paul R. O’Connor was a junior chemist at the University of Chicago Met Lab during the Manhattan Project.
