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.
Karl Ziegler Morgan was an American health physicist who served as Director of Health Physics at Oak Ridge from 1944 to 1972.
J. N. Diven worked at the 200 West Area at Hanford during the Manhattan Project.