H. L. Hoss

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.

E. S. Andrew

F. E. Clark

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

H. F. Zimmerman

H. F. Zimmerman worked for the J.A. Jones Construction Company.