Francis J. Hatcher

D. E. Farmer

Arthur “Pete” V. Peterson

Colonel Arthur “Pete” V. Peterson was the Army’s area engineer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Clayton Plummer

Clayton Plummer worked for the Tennessee Eastman Corporation at the Y-12 Plant.

F. E. Clark

F. E. Clark worked for the Tennessee Eastman Corporation at the Y-12 Plant.