Hi Merlin
Sorry - Yes.
Emily Colbourn: Born 1851 Stepney, London.
Father: William Colbourn (1816 Peckham, London -1860 Stepney, London)
Mother: Harriet Brown Heard (1826 Northam, Devon - 1864 Poplar, London)
They marry 30 Sept 1845, St Dunstans, Stepney.
Siblings:
Henry Colbourn (b 1846), William Osmund Colbourn (b1849) , Edwin Colbourn (b1850), Harriet Colbourn (b1853), Clara Heard Colbourn (b1854), John Colbourn (1856), Tobias Colbourn (b1857).
After the death of William Colbourn, Harriet remarries to:
William Goodey on 18 Aug 1862 at All Saints Church, Poplar, London.
These families all come from the same part of London, so I'm just guessing that some of them may know each other or be related, giving Emily Colbourn a reason to travel to Tasmania after the death of both her parents.
Hope thats enough to go on. Thanks Perks1.