Complex sentence: Sir William Appleton (3 September 1889--22 October 1958) was Mayor of Wellington, New Zealand from 1944 to 1950, having been a city councillor from 1931 to 1944.
Split into simpler sentences: Sir William Appleton (3 September 1889--22 October 1958) was a New Zealand politician. He served as Mayor of Wellington from 1944 to 1950, having been a city councillor from 1931 to 1944.