Harold Fidler

Civil EngineerUniversity of California, Berkeley

EngineerManhattan Project Veteran

Listen to Harold Fidler’s Oral History on Voices of the Manhattan Project

Harold Fidler was an Army major and a civil engineer for the Corps of Engineers. Fidler began working at the Radiation Laboratory at Berkeley with Ernest O. Lawrence in the early stages of the Manhattan Project.

Fiddler was responsible for sending weekly reports on the progress that scientists were making to Colonel James C. Marshall, who oversaw the Manhattan Project during its initial stages. Fiddler also ensured that the laboratory received the materials that it needed.

After the war, Fidler remained at the Radiation Laboratory and was appointed Associate Director in 1958.

Harold Fidler’s Timeline

1910 Aug 2nd Born in Philadelphia, Pennsylvania.

1932 Received B.S. in Civil Engineering from Drexel Institute of Technology.

1934 Received M.S. in Civil Engineering from MIT.

1940 Received Ph.D. in Civil Engineering from MIT.

19421945 Joined the Manhattan Project at the University of California Berkeley as a liaison for the army.

1958 Appointed Associate Director of the Radiation Laboratory.

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