Thomas Garvin was a marine in the 32nd (Portsmouth) Company when he arrived at Sydney aboard the Sirius in January 1788 as part of the First Fleet. He was discharged to the Port Jackson detachment on 21 June 1788. He returned to England on the Gorgon in December 1791, arriving at Portsmouth in mid 1792.
* information from Mollie Gillen, The Founders of Australia: A Biographical Dictionary of the First Fleet (1989), p 141
'Garvin, Thomas (?–?)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/garvin-thomas-31162/text38550, accessed 30 May 2025.