James R. McGuffey

J. E. Cooney

Edward Littleton

Edward Littleton was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

A. S. Gerish

A. S. Gerish worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Ellis T. Ryan

Ellis Ryan was a staff worker at Los Alamos during the Manhattan Project.