Mary and her twin sister Sarah were killed when a pine tree which had been set fire to by their father while clearing ground around the family's home accidentally fell on the house instead of away from the house.
'Lucas, Mary (1790–1792)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/lucas-mary-25606/text33921, accessed 2 February 2023.
17 August,
1790
Norfolk Island, Australia
14 August,
1792
(aged 1)
Norfolk Island, Australia