William Curtis was a seaman on the Lady Penrhyn when it arrived in Sydney in January 1788 as part of the First Fleet. His son, William, with Mary Branham was baptised on 20 July 1788 at Sydney. Curtis continued on the ship's voyage to China under the charter to the East India Company.
* information from Mollie Gillen, The Founders of Australia: A Biographical Dictionary of the First Fleet (1989), p 91
'Curtis, William (?–?)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/curtis-william-30396/text37699, accessed 29 April 2025.