W. E. Babcock

Harold J. Smith

I. J. Pardee

I. J. Pardee worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Donald Engelkemeior

Donald Engelkemeior was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Antonio C. Quintana

Antonio Quintana was a staff worker at Los Alamos during the Manhattan Project.