National Museum of Nuclear Science & History
O'Brien worked for Stone and Webster Engineering Corporation.
W. H. Wilson worked for the H. K. Ferguson Company.
Smith worked at the 100-B 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.
William F. Lightfoot worked on the fuse of the “Fat Man” implosion bomb as manufacturing and test equipment manager for the Raytheon Company.
