Michael Depner

Ellis T. Ryan

Ellis Ryan was a staff worker at Los Alamos during the Manhattan Project.

Clarence F. Hiskey

Clarence Francis Hiskey (1912-1998) was an American chemist and Soviet spy. He worked at Columbia University and the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.

Ardell E. Croe

I. A. Coyne

Coyne worked at the 100-F Area at Hanford during the Manhattan Project.