Richard S. Ringhelm

C. W. Hicks

C. W. Hicks worked for the Roane-Anderson Company.

O. G. Bolin

O. G. Bolin worked for the Tennessee Eastman Corporation at the Y-12 Plant.

John R. Klein

John Klein was a member of the Special Engineering Detachment. He worked at the Metallurgical Lab at the University of Chicago and at Los Alamos.

Robert S. Fitzhugh