J. G. Cothran

Paul F. Gast

Gast worked at the 300 Area at Hanford during the Manhattan Project.

J. R. Clark

Margaret M. Emmerson

Margaret M. Emmerson was a technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

J. H. Graham

J. H. Graham worked for the Tennessee Eastman Corporation at the Y-12 Plant.