List of sources:
Cape of Good Hope almanac and annual register, 1856, 1857, 1858.
Curson, H.H. Matters of veterinary interest, 1795-1881. Journal of the South African Veterinary Medical Association, 1935, Vol. 6, pp. 78-107, 196-218, 274-296.
FamilySearch: George Allan Hutton. https://www.familysearch.org/tree/person/details/G9RX-9CG
Grahamstown Journal, 17 November 1855, p. 2: Agricultural Association; 1 December 1855, p. 2: Grahamstown Medico-Chirurgical Society; 26 January 1856, p. 3, 9 February 1856, pp. 2-3, and 3 June 1856, p. 3: Literary, Scientific and Medical Society; 1 July 1856, p. 3: "Our institutes".
Hutton, G.A. Reminiscences in the life of Surgeon-Major George A. Hutton. London: H.K. Lewis, 1907.
Kaapsche Grensblad, 17 November 1855, p. 3: Landbouwkundig Genootschap.
Literary, Scientific and Medical Society (Grahamstown). Minute Book, 1855-1861.
Obituary: Surgeon-Major
George Allan Hutton. British Medical
Journal. 14 June 1919, p. 755. Retrieved from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2341350/ on 2017-12-20.