National Museum of Nuclear Science & History
M. V. Griscom worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.
Helena Calloway was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
