National Museum of Nuclear Science & History
R. W. McElwee worked for the Union Carbide & Carbon Corporation.
Twohey worked for Stone and Webster Engineering Corporation.
Attended the City College of New York.
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.