Fred Patrick worked in DuPont's Chamber Works in Deepwater, NJ in 1943 on Manhattan Project work. His work involved different gas cylinder distribution throughout the area. He also worked in the Purchasing Department, where ordered supplies came through – but he never knew what was in the packed crates or packages. In 1944, he was sent to Ft. Belvoir to join the Army Corps of Engineers.
After the war, he received a War Department certificate thanking him for having participated in the production of the atomic bomb and thereby bringing a successful conclusion of World War II, signed by Henry L Stimson, Secretary of War. He also received a bomb pin.