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National Museum of Nuclear Science & History

John H. Smith

GuardChicago, IL

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

John Smith was a guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.

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Hanford, WA

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Oak Ridge, TN

Houser worked at Oak Ridge during the Manhattan Project.

Ed Hammel

Los Alamos, NM

Edward F. “Ed” Hammel was an American chemist. Hammel had just completed his Ph.D. at Princeton University when he joined a Canadian heavy water project sponsored by the school in 1941.