George L. Barnard

Julian N. Bernacchi

Julian N. Bernacchi had three main assignments in the Manhattan Project. The most significant was as the Security Officer of Dr.

Ogle W. Hess

Olge W. Hess was a research assistant at the University of Chicago’s Metallurgical Laboratory.

Henry C. Hoffman

Thomas H. Cowley

Thomas Cowley was a Military Policeman assigned to Post Security at Los Alamos, New Mexico during the Manhattan Project.