List of sources:
African court calendar and directory (from 1827 the South African almanac and directory), 1822, 1823, 1826, 1827, 1829.
Burrows, E.H. A history of medicine in South Africa up to the end of the nineteenth century. Cape Town: Balkema, 1958.
Heese, J.A. South African genealogies. Pretoria and Stellenbosch, 1986-2005.
Laidler, P.W. & Gelfand, M. South Afric: Its medical history, 1652-1898. Cape Town: Struik, 1971.
National Automated Archival Information Retrieval System (NAAIRS). http://www.national.archives.gov.za/naairs.htm Documents relating to Perry, Thomas.
South African Quarterly Journal, 1830, Vol. 1, paper by Perry.