'Liebermann, Sophie Gertrude (1871–1955)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/liebermann-sophie-gertrude-22892/text, accessed 3 June 2025.
24 June,
1955
(aged ~ 84)
Camberwell, Melbourne,
Victoria,
Australia
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