'Johnston, Mary (1768–1859)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/johnston-mary-15286/text, accessed 31 May 2025.
17 October,
1768
London,
Middlesex,
England
4 July,
1859
(aged 90)
Ebenezer,
New South Wales,
Australia
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