National Museum of Nuclear Science & History
John Henry Manley (1907-1990) was an American physicist. Manley worked on the Manhattan Project almost from its beginning, starting at the Metallurgical Lab at the University of Chicago.
Originally from California, Jean Crossland was a secretary in the K-25 process area at Oak Ridge during the Manhattan Project.
Frank E. Keene was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
W. T. Sergeant worked for the United States Engineer District Office.