List of sources:
Ethos: e-theses online service. Retrieved on 17February 2021 from https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.591852
Malherbe, D.F. du T. Family register of the South African nation (3rd ed.) Stellenbosch: Tegniek, 1966.
Medical and pharmacy register for the Colony of the Cape of Good Hope, 1893, 1907.
National Archives Repository (TAB), Source MHG, Vol. 0, Ref. 62053: death notice, Richard Mahoney Townsend.
National Automated Archival Information Retrieval System (NAAIRS). http://national.archives.gov.za/naairs.htm Documents relating to Townsend, Richard Mahoney / Townsend, R.M. / Dr Townsend.
Pietermaritzburg Archives Repository (NAB), Source NMC, Vol. 34, [List of medical practitioners, dentists, and chemists and druggists registered in the Cape of Good Hope on 31 December 1915].
Rhodesia Scientific Association. Proceedings, 1904, Vol. 4, paper by Townsend; 1906, Vol. 6(1), list of members.
Richard Mahoney Townsend. WikiTree. Retrieved on 17 February 2021 from https://www.wikitree.com/wiki/Townsend-4410
South African medical directory for 1897. Cape Town: Cape Times, 1897.