Cyrus Feldman

J. L. Williams

J. A. McCormick

J. A. McCormick worked for the Tennessee Eastman Corporation at the Y-12 Plant.

W. A. Plumb

W. A. Plumb worked for the United States Engineer District Office.

Frank Karcher

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