National Museum of Nuclear Science & History
B. T. McCune worked for the United States Engineer District Office.
Harold Hoover was a member of the Special Engineer Detachment during the Manhattan Project. He worked as a filter foreman at the Y-12 Plant, but his real job was in counterintelligence, to ensure no sabotage occurred.
Lawrence B. Magnusson was a research associate at the Metallurgical Laboratory at the University of Chicago.
