George Challis

S. N. Herrin

Herrin worked at the 200 East Area at Hanford during the Manhattan Project. 

J. G. Carney

Philip Grant Koontz

Philip G. Koontz was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

E. G. Olsen

E. G. Olsen worked for the United States Engineer District Office.