1. Auckland Museum Library MS 281. Smith, Stephenson Percy (1840-1922) Papers c. 1841 - c. 1940. Inventory created 1990 Amended 31 May 2001. 69 pp.
2. Auckland Star 19 April 1922 Percy Smith dead. Ex-surveyor-general. A notable personality, p. 8.
3. Bagnall, A.G. 1966 Smith, Stephenson Percy (1840-1922). In A.H. McLintock (ed.), An encyclopedia of New Zealand, pp. 265-266. Wellington: Government Printer.
4. Best, E. 1922 Our late president. Journal of the Polynesian Society 31(122):75.
5. Byrnes, G.M. 1993 Smith, Stephenson Percy. Dictionary of New Zealand biography. Volume 2: 1870-1900, pp. 470-471. Wellington: Bridget Williams Books; Department of Internal Affairs.