Earl H. Hatton

C. E. Twigg

C. E. Twigg worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Walter H. Cottrell

Homer W. Ibser

Homer W. Ibser was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Carl H. Dunnebecke Jr.

Dunnebecke worked in the United States Engineer District Office.