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On November 5, 1943, the 89th Chemical Battalion, Motorized, was activated at Camp Roberts, California per General Orders, Headquarters, 4th Army, by Command of Lt. General William A. Simpson. Major James R. Hudson, CWS, a reserve officer with experience in World War I in the Field Artillery, assumed command.

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United States Army, 89th Chemical Mortar Battalion, Regimental histories, World War 1939-1945, Registers


Military History

Historical highlights of the Eighty-ninth Chemical Mortar Battalion

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