List of sources:
Burrows, E.H. A history of medicine in South Africa. Cape Town: Balkema, 1958.
Cape of Good Hope. Catalogue of the natural history collections of the Albany Museum, Grahamstown (Appendix to Parliamentary Report G24-'83). Cape Town: W.A. Richards & Sons, 1883.
Cape of Good Hope. Report on the Albany Museum, 1858, 1859.
Cape of Good Hope almanac and annual register, 1856-1860 (Grahamstown); 1865, pp. 90-92, "Medical practitioners".
Cape of Good Hope Government Gazette, 16 September 1862: A list of the medical practitioners in the Cape Colony...
Eastern Province Monthly Magazine, 1857, Vol. 1, pp. 514, 577, 697; Vol. 2, p. 245: "Our institutes". 1858, Vol. 2, pp. 575-582, 631-639: Edmunds's lecture.
FamilySearch: Ann Christiana Burn. https://www.familysearch.org/tree/person/details/L7JV-ZW7
FamilySearch: William Edmunds. https://www.familysearch.org/ark:/61903/3:1:3Q9M-CSQX-CJN1?view=index&personArk=/ark:/61903/1:1:QP4Y-8TTN&action=view
Grahamstown Journal, 11 August 1855, p. 4; 6 October 1855, pp. 2-3: "Medico-Chirurgical Society". 17 November 1855, p. 2: "Eastern Province Agricultural Association". 26 January 1856, p. 3; 1 March 1856, p. 2; 26 April 1856, p. 2; 1 July 1856, p. 3; 26 May 1857, p. 2; 22 September 1857, p. 2; 5 July 1859, p. 4; 12 July 1859, p. 4: "Literary, Scientific and Medical Society".
Jones, Kaye. (author of forthcoming book, The case of the
chocolate cream poisoner: The poisonous passion of Christiana Edmunds). Personal communications, August 2015.
Kaapsche Grensblad, 17 November 1855, p. 3: "Landbouwkundig Genootschap"; 11 July 1857, p. 1; 22 August 1857, p. 1: "Literary, Scientific and Medical Society" (advertisements of lectures).
Laidler, P.W. & Gelfand, M. South Africa: Its medical history, 1652-1898. Cape Town: Struik, 1971.
Literary, Scientific and Medical Society (Grahamstown). Minute Book, 1855-1861. Also, Sixth annual report of the committee.... (G.M. Bowker Collection, 1820 Settler's Museum, Grahamstown).
National Automated Archival Information Retrieval System (NAAIRS). http://www.national.archives.gov.za/naairs.htm Documents relating to William Edmunds / W. Edmunds / Dr Edmunds.
South African Agricultural Register, 9 June 1859, No. 35, pp. 426-427; 16 June 1859, No. 36, pp. 438-439; 30 June 1859, No. 37, pp. 462-463; 7 July 1859, No. 38, pp. 475-476: "The chemistry of the seasons", by W. Edmunds.