George F. Popp

Jas C. Penny, Jr.

Jas Penny, Jr. worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Martin M. Whitaker

Martin M. Whitaker was a research associate at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.

Bert C. Sigler

P. S. Baker

P. S. Baker worked for the Tennessee Eastman Corporation at the Y-12 Plant.