Stanley J. Marshall

G. A. Economu

Morton H. Simons

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.

Bernard C. Sesko

Bernard Sesko served in the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.