Complex sentence: He attended Emanuel School after passing his eleven-plus in 1944 and served as a conscript of the National Service, in the ranks of the King's Royal Rifle Corps, from 1951 to 1953.
Split into simpler sentences: He attended Emanuel School after passing his eleven-plus in 1944. He served as a conscript of the National Service, in the ranks of the King's Royal Rifle Corps, from 1951 to 1953.