National Museum of Nuclear Science & History
Madsen worked in the 100 D Area at Hanford during the Manhattan Project.
John K. Cloepfil served in the 320th Troop Carrier Squadron.
Charles Cooper was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
James A. Adkins served as a Master Sergeant in the 393rd Bombardment Squadron. He was the flight engineer regularly assigned to the B-29 Some Punkins.