According to family records, John Cross had died by 1806.
'Cross, John (1801–1806)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/cross-john-24846/text33421, accessed 27 March 2023.
3 October,
1801
New South Wales, Australia
1806
(aged ~ 4)
New South Wales, Australia