He served as deputy chairman of committees from 1968 to 1974 .
Thomson was re-elected three times ( in 1956 , 1962 , and 1968 ) , eventually retiring from parliament at the 1974 state election .
Thomson served as deputy chairman of committees from 1968 to 1974 .
Thomson was re-elected three times ( in 1956 , 1962 , and 1968 ) , eventually retiring from parliament at the 1974 state election .