National Museum of Nuclear Science & History
Helene Smith was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Dunlap Miller worked for the Roane-Anderson Company.
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.
Holt worked for Stone and Webster Engineering Corporation.