National Museum of Nuclear Science & History
Lionel Ovesey served in the 390th Air Service Group.
John E. Wirth worked for Clinton Laboratories at the X-10 Reactor.
Robert M. Donnell served as a 1st lieutenant in the 393rd Bombardment Squadron. He was the flight engineer regularly assigned to the B-29 Strange Cargo.
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.