M. E. Ritchie

C. W. Angell

Angell worked at the 100 F Area at Hanford during the Manhattan Project.

Arthur N. Jaffey

Arthur N. Jaffey was an associate chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Alfred Simon

Alfred Simon was a research associate at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Harry S. Freeman