Chester J. Ramatowski

Fred Oetzman

Fred Oetzman worked for the Tennessee Eastman Corporation at the Y-12 Plant.

K. M. Whitlesy

K. M. Whitlesy worked for the United States Engineer District Office.

C. B. Newman

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.