'Underwood, Joseph Tremayne (1833–1833)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/underwood-joseph-tremayne-25678/text, accessed 2 June 2025.
30 June,
1833
Sydney,
New South Wales,
Australia
18 September,
1833
(aged 2 months)
Sydney,
New South Wales,
Australia
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