H. F. Pyatt

Joseph H. Heartberg

Joseph H. Heartberg was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Martha L. Gorder

G. N. Sawdy

G. N. Sawdy worked for the Tennessee Eastman Corporation at the Y-12 Plant.

E. B. Dutton

E. B. Dutton worked for the Tennessee Eastman Corporation at the Y-12 Plant.