'Grigson, Sydney Mark (1897–1918)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/grigson-sydney-mark-22539/text, accessed 6 December 2024.
22 February,
1897
Muswellbrook,
New South Wales,
Australia
18 April,
1918
(aged 21)
England
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