James P. Bryan

H. Countryman

H. Gerritsen

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

John Mihalkanin

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

G. E. Freeman

G. E. Freeman worked for the Tennessee Eastman Corporation at the Y-12 Plant.