N. L. Walgamotte

Arthur H. Jaffey

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

Harry Reason

Harry Reason was a janitor at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Arthur W. Collins

Arthur W. Collins served in the Special Engineer Detachment and Project Alberta.

E. F. Klenke