Complex sentence: After his retirement in 1979 McNair busied himself working with many church, charitable and ex-Service organisations he also maintained close contact with his old school and became President of the Douai Society 1991-1993.
Split into simpler sentences: After his retirement in 1979 McNair busied himself working with many church, charitable and ex-Service organisations. He also maintained close contact with his old school and was elected President of the Douai Society 1991-1993.