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National Museum of Nuclear Science & History

Margaret Strombeck

Switchboard OperatorChicago, IL

Manhattan Project VeteranProject Worker/Staff
Sketch of Chicago Pile-1 by Melvin A. Miller

Margaret Strombeck was a swtichboard operator at the Metallurgical Laboratory in Chicago during the Manhattan Project.

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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.