Gordon W. Mills

W. V. Krewatch

Frank Karcher

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

Roy W. Greenlee

Roy Greenlee was a chemist at the University of Chicago Metallurgical Lab and at Oak Ridge, Tennessee.

Gordon Fielden

Gordon Fielden worked for the Tennessee Eastman Corporation at the Y-12 Plant.