'Turnbull, Ivor Gosper (1898–1986)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/turnbull-ivor-gosper-23582/text, accessed 15 June 2025.
10 August,
1898
Kempsey,
New South Wales,
Australia
1986
(aged ~ 87)
Kempsey,
New South Wales,
Australia