Walter J. Dudek

Ralph E. Telford

Ralph E. Telford worked at the Metallurgical Laboratory in Chicago during the Manhattan Project.

E. E. Minett

E. E. Minett worked for the Union Carbide & Carbon Corporation.

Sara B. Chettkow

Sara B. Chettkow was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Richard L. Conklin