Wilfred M. Sumner

H. Courtney

H. Courtney worked for the Rock City Construction Company.

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.

Lee Klein

G. P. Happ

G. P. Happ worked for the Tennessee Eastman Corporation at the Y-12 Plant.