Frank D. Duffy

Katherine Gnjec

Katherine Gnjec was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

William H. Walker

D. H. Edwards

D. H. Edwards worked at the 300 Area at Hanford during the Manhattan Project.

Frank G. Foote

Frank Foote was the Principal Metallurgist at the Manhattan Project’s Metallurgical Laboratory at the University of Chicago.