Complex sentence: Ozzie went to junior schools in the Wirral and Skerry's School in Rodney Street, Liverpool, later attending the Liverpool Institute High School for Boys as a contemporary of Paul McCartney and John Lennon, although junior to them.
Split into simpler sentences: Ozzie went to junior schools in the Wirral and Skerry's School in Rodney Street, Liverpool. He then attended the Liverpool Institute High School for Boys as a contemporary of Paul McCartney and John Lennon, although junior to them.