National Museum of Nuclear Science & History
E. A. McCaskill worked for the United States Engineer District Office.
John Crawford was a physicist and research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
William S. Biggers worked as a chemical engineer during the Manhattan Project. Biggers worked at the the Houdaille-Hershey Plant in Decatur, Illinois from April 1944 to December 1946.
