National Museum of Nuclear Science & History
Clement J. O’Hara served in the 1027th Air Material Squadron.
D. M. Black worked for Clinton Laboratories at the X-10 Reactor.
Harry S. Truman (1884-1972) was the 33rd President of the United States of America. Truman first learned of the Manhattan Project after the death of President Roosevelt in April of 1945, when he relinquished his role as Vice President and took the oath of office as the next president of the United States.
James King worked at the Y-12 Plant in Oak Ridge, Tennessee, in the uranium purification process from February 1944 to February 1947.
