National Museum of Nuclear Science & History
MacDonald worked for Stone and Webster Engineering Corporation.
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.
M. J. McDaniel worked for Clinton Laboratories at the X-10 Reactor.
Van Doubek, Jr. served in the 320th Troop Carrier Squadron.
