National Museum of Nuclear Science & History
Ethol Strom was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
M. F. Welch worked for the United States Engineer District Office.
Bergen McCormick worked for the J.A. Jones Construction Company.
Chloe S. Leazer, Jr. served in the 393rd Bombardment Squadron.
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.