28 N.W.2d 514 STATE OF IOWA, Appellee, v. LAWRENCE WESLEY WILLIAMS, Appellant. No. 46965.Supreme Court of Iowa. July 29, 1947. MOTOR VEHICLES: Manslaughter — instruction on defendant’s 1 right to assume observance of law by person using the highway not required. In a prosecution for manslaughter, allegedly committed by defendant’s operation of a motor vehicle […]