National Museum of Nuclear Science & History
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.
Horace Owen France was an associate biologist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Robert H. Maas served in the 603rd Air Engineering Squadron.
