F. A. McRay

K. Langosch

K. Langosch worked in the Instrument Section at the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.

E. W. Ullemeyer

H. O. Arnold

H. O. Arnold worked for the Kellex Corporation at the K-25 Plant.

Gonzalo Williams

Gonzalo Williams was a staff worker at Los Alamos during the Manhattan Project.