Frank R. Johnson

Clark E. Center

Clark Center was a Manhattan Project veteran, who was the general superintendent and later President of the Union Carbide Nuclear Division in Oak Ridge.

Marcellus H. Fricke

Henry J. Wollweber

Henry J. Wollweber was a guard at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.

Karl Z. Morgan

Karl Ziegler Morgan was an American health physicist who served as Director of Health Physics at Oak Ridge from 1944 to 1972.