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.
J. D. Hayes worked for the Tennessee Eastman Corporation at the Y-12 Plant.
J. L. Hartman worked for the J.A. Jones Construction Company.
