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- Brooking, Tom. "Mackenzie, Thomas Noble 1853–1930". Dictionary of New Zealand Biography. Ministry for Culture and Heritage. http://www.teara.govt.nz/en/biographies/3m18. Retrieved 10 December 2011.
- Ross. "Ernest Valentine Sanderson". Dictionary of New Zealand Biography. Ministry for Culture and Heritage. http://www.teara.govt.nz/en/biographies/4s4. Retrieved December 2011.
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