J. F. Horan

Theodore Hall

Theodore “Ted” Hall (1925-1999) was an American physicist and an atomic spy who passed along detailed information about the implosion-type “Fat Man” bomb and several processes for purifying plutonium to the Soviet Union.

Gerald R. Tyler

Gerald Tyler was a commanding officer at Los Alamos during the Manhattan Project.

A. M. Ostrum

Dellis Caho

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