Thomas Brown was found guilty on 29 October 1783 at the Old Bailey, London, of stealing a number of silver articles from a house. Sentenced to 7 years transportation to America he was one of the convicts who mutinied on the transport Mercury in 1784. Recaptured, he was sent to the Dunkirk hulk and arrived in Sydney in January 1788 aboard the Charlotte as part of the First Fleet. It is not know what became of Brown.
* information from Mollie Gillen, The Founders of Australia: A Biographical Dictionary of the First Fleet (1989), pp 53-54
'Brown, Thomas (c. 1762–?)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/brown-thomas-30421/text37725, accessed 17 January 2021.