Complex sentence: J.M. Oxley attended the University of Toronto as an engineering (applied sciences) student and fought in World War I in the Canadian Army (Canadian Expeditionary Force) from 1915-1918.
Split into simpler sentences: J.M. Oxley attended the University of Toronto as an engineering (applied sciences) student. He fought in World War I in the Canadian Expeditionary Force from 1915-1918.