National Museum of Nuclear Science & History
Walter A. Spradlin served as a staff sergeant in the 393rd Bombardment Squadron. He was the tail gunner regularly assigned to the B-29 Strange Cargo.
Hayes worked in the United States Engineer District Office.
Jerome (Jerry) Kellogg was an American physicist. He had studied under I. I. Rabi at Columbia University, and worked on the Manhattan Project at Los Alamos.