Robert G. Olsen

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.

Walter F. Piontek

J. R. Pierson

J. R. Pierson worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Edward B. Connelly