List of sources:
Cape of Good Hope. Report of the Alexander McGregor Memorial Museum, Kimberley, 1908, 1909.
FamilySearch: Henry Symonds. https://ancestors.familysearch.org/en/L7GS-BM3/henry-symonds-1863-1943
Heese, J.A. South African genealogies. Pretoria and Stellenbosch, 1986-2005.
McGregor Museum, Kimberley. [Annual report for 1910, 1911, copied from the Diamond Fields Advertiser, received from McGregor Museum].
Medical and pharmacy register for the Colony of the Cape of Good Hope, 1893, 1907.
Medical, dental and pharmacy directory of South Africa, 1926/7.
National Automated Archival Information Retrieval System (NAAIRS). http://national.archives.gov.za/naairs.htm Documents relating to Symonds, Henry / Symonds, H.
South African medical directory for 1897. Cape Town: Cape Times, 1897.
South African Medical Journal (2nd series), January 1896, Vol. 3(9), p. 262: "Kimberley Branch, British Medical Association, December 2nd, 1895"; January 1898, Vol. 5, pp. 240-242: "South African Medical Association" (list of members); April 1899, Vol. 6, pp. 272-273: "Griqualand West Branch of the British Medical Association, Kimberley, February 8th, 1899".