Mrs. Louise Ruotolo

H. E. Coppenbarger

H. E. Coppenbarger worked for the Edenfield Electric Company.

James Downey

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

John A. Derry

Major John A. Derry was a  top military assistant, mainly working in Washington D.C., during the Manhattan Project.

John F. Gilmore