Bacteriological Warfare to Col. Richard P. Heppner
Letter from Col. H.W. Dix to Col. Richard P. Heppner on March 20, 1945 regarding the current status of Japanese biological warfare and diverse actions to be taken by US intelligence, such as interrogations.
Colonel H.W. Dix
National Archives of the United States, R112 E295A, B11
Colonel HW Dix