Complex sentence: Thomas Napier (1802-1881) was born in Scotland, emigrating to the Australian Colonies in 1832 firstly to Van Diemen's Land and then later to the Port Phillip District (now known as Melbourne).
Split into simpler sentences: Thomas Napier (1802-1881) was born in Scotland. He emigrating to the Australian Colonies in 1832, first to Van Diemen's Land and then later to the Port Phillip District (now known as Melbourne).