National Museum of Nuclear Science & History
A. H. Dahl worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Attended the Illinois Institute of Technology.
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.
Steinbach worked for Stone and Webster Engineering Corporation.
