Joseph Dunstil was sentenced to 7 years transportation on 11 January 1787 at Maidstone, Kent, for an unknown felony. He arrived at Sydney aboard the Albemarle in October 1791 as part of the Third Fleet.
In 1795 he was charged, with five other men, of gang raping Mary Hartley. The men were found not guilty but were detained and tried for assault. They were found guilty on 25 April. Dunstil was sentenced to 300 lashes.
Dunstil was sent to Norfolk Island sometime around 1797-98. He left the island on 22 January 1802 and returned 20 March 1802 according to the 1802 victualling list. He was still recorded as a male convict in 1804 and the 1805 muster. He departed Norfolk Island by the Kangaroo for Van Diemen's Land (Tasmania) in February 1814. He married Alice Hughes (registered as Eleanor Hughes) on 24 October 1814. In 1819 he was recorded as living at Hobart and in 1822 had one female child. He died (as Joseph Dunstill) at Launceston Hospital on 17 July 1839; his age was given as 77 and his occupation as labourer.
'Dunstil, Joseph (c. 1774–1839)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/dunstil-joseph-30654/text37988, accessed 7 June 2023.