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'Mandelson, Cyril Nathan (1885–1960)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/mandelson-cyril-nathan-20491/text, accessed 23 May 2022.
2 January,
1885
Darlinghurst, Sydney, New South Wales, Australia
30 September,
1960
(aged 75)
New South Wales, Australia