Edward J. Walker

William A. Hichler

William A. Hichler was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

John P. Echert

John P. Echert served in the 393rd Bombardment Squadron. 

E. J. Risdon

E. J. Risdon worked for the Roane-Anderson Company.

Carl A. Neilson