Simplify the following text for a Grade 5 native English-speaking person.
Original: At he age of 11 his family moved to Sydney and he attended Newington College ( 1950 â `` 1955 ) , commencing as a preparatory school student in Wyvern House .
Simplified: At the age of 11 his family moved to Sydney . He attended Newington College from 1950 to 1955 .