National Museum of Nuclear Science & History
Calkins worked at the 200 West Area at Hanford during the Manhattan Project.
Attended Southern Methodist University.
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 J. Hinchey served in the 393rd Bombardment Squadron.
