National Museum of Nuclear Science & History
Berry worked at Los Alamos during the Manhattan Project.
R. T. Bartnett worked for the Roane-Anderson Company.
A. A. Groppe worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.
