He was then appointed Principal of St. John Vianney 's School , a post he held for several years .
DeSouza taught at St Paul 's English High School and then at St. Anthony 's School .
DeSouza was then appointed Principal of St. John Vianney 's St. Anthony 's School , a post DeSouza held for several years .
DeSouza taught at St Paul 's English High School and then at St. Anthony 's School .