James A. Schoke’s Interview (2014)
James A. Schoke was a member of the Special Engineer Detachment at the University of Chicago during the Manhattan Project. He worked for the instrument group, inventing instruments to detect uranium and alpha emitters and travelled around the country to train scientists to use and maintain his instruments. In this interview, Schoke discusses his encounter with George Koval, a health physicist and Soviet Spy who infiltrated the Manhattan Project’s top secret facility in Dayton, Ohio. Schoke recalls meeting with Koval several times at Dayton to help train him on instruments that were used to detect radiation at laboratory facilities.