National Museum of Nuclear Science & History
McCook worked in the 200 West Area at Hanford during the Manhattan Project.
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.
R. O. Mitchell worked for the Roane-Anderson Company.
