Complex sentence: He emigrated to South Australia, he arrived at Holdfast Bay, South Australia on 12 December 1840 on the "Brightman", living at North Adelaide, and set a legal practice in the city and returned to England.
Split into simpler sentences: He emigrated to South Australia, arriving at Holdfast Bay, South Australia on 12 December 1840 on the "Brightman". He lived at North Adelaide, set up a legal practice in the city and returned to England.