National Museum of Nuclear Science & History
Leonard Reed was a janitor at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Harding worked at the 300 Area at Hanford during the Manhattan Project.
Attended University of Michigan.
Gundberg worked for Stone and Webster Engineering Corporation.
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.