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'Mandelson, Ruby Jane (1895–1972)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/mandelson-ruby-jane-22159/text, accessed 19 May 2022.
10 July,
1895
Warren, New South Wales, Australia
16 July,
1972
(aged 77)
Ryde, Sydney, New South Wales, Australia