List of sources:
Laidler, P.W. & Gelfand, M. South Africa, its medical history, 1652-1898. Cape Town: Struik, 1971.
National Automated Archival Information Retrieval System (NAAIRS). http://national.archives.gov.za/naairs.htm Documents relating to Simoens, Joseph Auspicio / Simoens, J.A.
South African bibliography to the year 1925. London: Mansell, 1979.
South African Medical Directory for 1897. Cape Town: Cape Times, 1897.
South African Medical Journal, Series 2, May 1897, Vol. 5, pp. 20-21 and January 1898, Vol. 5, pp. 240-242: South African Medical Association [list of members].
Staatsalmanak der Zuid-Afrikaansche Republiek, 1896, 1898: Naamlijst van geadmitteerde genees-, heel- en verloskundigen...
Staats Courant der Zuid-Afrikaansche Republiek, 2 April 1890, p. 298: Gouvernements Kennisgeviong No. 90.