Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

John Crawford

PhysicistChicago, IL

Manhattan Project VeteranScientist
Chicago Pile-1

John Crawford was a physicist and research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project. Crawford was one of seventy scientists from the Met Lab to sign the Szilard Petition. Written by physicist Leo Szilard, the petition attempted to prevent the United States from dropping the atomic bomb on Japan. 

Related Profiles

W. C. Long

Hanford, WA

E.E. Riggin

Hanford, WA

J. J. Murphy

Oak Ridge, TN

J. J. Murphy worked for the Union Carbide & Carbon Corporation.

Jane Roberg

Los Alamos, NM

Jane Roberg was an American physicist. She earned a Ph.D. from Duke University and was working at the University of California when she was recruited to work on the Manhattan Project at Los Alamos.