'Collins, Mary Helena (1833–1870)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/collins-mary-helena-28520/text, accessed 24 April 2025.
17 October,
1833
Maitland,
New South Wales,
Australia
6 September,
1870
(aged 36)
Rockhampton,
Queensland,
Australia
Includes subject's nationality; their parents' nationality; the countries in which they spent a significant part of their childhood, and their self-identity.