National Museum of Nuclear Science & History
Magdaline Penny worked for the United States Engineer District Office.
W. H. McEachern worked for the Fercleve 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.
G. C. Hyneman worked for the Edenfield Electric Company.
David Halsey worked for the J.A. Jones Construction Company.
