David M. Sanders

James Brocks

Harry W. Winkler

Harry Winkler worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Frank Karcher

Sergeant Frank Karcher was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

H. H. Mason

Mason worked in the 300 Area at Hanford during the Manhattan Project.