National Museum of Nuclear Science & History
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.
P. G. Kinken worked for the United States Engineer District Office.
B. R. Lonsinger served in the 390th Air Service Group.
