National Museum of Nuclear Science & History
Donald Todd was a staff worker at Los Alamos during the Manhattan Project.
Leon O. (Tom) Morgan was an American chemist who worked on the Manhattan Project and co-discovered the element Americium.
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.
C. D. Mahood worked for the Roane-Anderson Company.