National Museum of Nuclear Science & History
G. J. Angele worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Piper worked for Stone and Webster Engineering Corporation.
Francis J. Schramke served as a private first class in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Top Secret.
Joseph H. Heartberg was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
