It is possible that Mary Evans father was John Arndell. She was, however, known as Mary Evans.
'Huxley, Mary (1806–1859)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/huxley-mary-26694/text34348, accessed 6 February 2023.
23 June,
1806
Lower Portland, New South Wales, Australia
17 December,
1859
(aged 53)
Jerry's Plains, New South Wales, Australia