Wilfred M. Sumner

R. E. Engel

Engel worked in the United States Engineer District Office.

Juanita Fristoe

Juanita Fristoe worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Robert E. Johnson

Robert E. Johnson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Lionel E. Baker