National Museum of Nuclear Science & History
D. S. Pattershall worked for Clinton Laboratories at the X-10 Reactor.
Harry Markee worked for the United States Engineer District Office.
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.
