'Harper, George Mitchell (1822–1856)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/harper-george-mitchell-23814/text, accessed 2 June 2025.
26 December,
1822
Sydney,
New South Wales,
Australia
25 June,
1856
(aged 33)
Wangaratta,
Victoria,
Australia