'Castles, Ethel Margaret (Dolly) (1884–1971)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/castles-ethel-margaret-dolly-18563/text, accessed 16 March 2025.
12 February,
1884
Carlton, Melbourne,
Victoria,
Australia
12 August,
1971
(aged 87)
Camberwell, Melbourne,
Victoria,
Australia