List of sources:
Burrows, E H A history of medicine in South Africa up to the end of the nineteenth century Cape Town: Balkema, 1958.
Dictionary of South African Biography, Vol. 2, 1972.
MacRae, C Life etched in stone: Fossils of South Africa. Johannesburg: Geological Society of South Africa, 1991.
Natal [Colony]. Departmental reports, 1904: Natal medical, dental, pharmacy and veterinary registers.
Natal almanac, directory and yearly register, 1870, 1873-1884, 1890, 1900. Pietermaritzburg: P. Davis & Sons.
National Automated Archival Information
Retrieval System (NAAIRS). http://national.archives.gov.za/naairs.htm Documents relating to William Henry Addison / Dr W. H. Addison.
Obituary. South African Medical Record, 1905, Vol. 3(9), pp. 192-193.
South African medical directory for 1897. Cape Town: Cape Times, 1897.