List of sources:
Agricultural Journal of the Cape of Good Hope, 1897, Vol. 10, Soga's paper.
General Directory of South Africa, 1890/1, Clerical directory.
Gutsche, T. There was a man. The life and times of Sir Arnold Theiler, KCMG, of Onderstepoort (p. 24). Cape Town: H. Timmins, 1979.
Medical and Pharmacy register for the Colony of the Cape of Good Hope, 1893, 1907.
National Automated Archival Information Retrieval System (NAAIRS). http://national.archives.gov.za/naairs.htm Documents relating to Soga, William Anderson / Soga, W.A.
Obituary: Rev. William Anderson Soga, MD, CM (Glas.) South African Medical Record, 12 August 1916, pp. 232-233.
Soga, W.A. The ethnology of the Bomvanas of Bomvanaland, an aboriginal tribe of South East Africa... MD thesis, University of Glasgow, 1894. Retrieved from http://theses.gla.ac.uk/73985/1/1894SogaMD.pdf
South African bibliography to the year 1925. London: Mansell, 1979 (Vol. 1-4); Cape Town: South African Library, 1991 (Vol. 5).
South African medical directory for 1897. Cape Town: Cape Times, 1897.
William Anderson Soga. Ancestry. Retrieved on 9 November 2020 from https://www.ancestry.com/genealogy/records/william-anderson-soga-24-2mr8yyl