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.
Michael Olsen was a member of the Special Engineering Detachment at Los Alamos.
Otto Hillig was a Danish machinist who helped work on various projects in the early days of the Manhattan Project.
Howard Muller was a staff worker at Los Alamos during the Manhattan Project.