List of sources:
Cape of Good Hope. Civil service list, 1887, 1891, 1894: Lists of land surveyors.
Cape of Good Hope. Report of the Surveyor-General, 1879, 1880.
FamillySearch: Carel Philip Watermeyer. https://www.familysearch.org/ark:/61903/3:1:3Q9M-CSQ8-HSX7-L?view=index&personArk=/ark:/61903/1:1:QP7T-X9Y3&action=view&cc=2517051&lang=en&groupId= AND https://www.familysearch.org/en/tree/person/details/KHRC-95D
My Heritage: Charles Philip Watermeyer. Retrieved on 12 April 2021 from https://www.myheritage.com/names/charles_watermeyer
De Villiers, C.C. Geslagsregisters van die ou Kaapse families. Hersien en aangevul deur C. Pama. Kaapstad: Balkema, 1981.
General directory and guide book to the Cape of Good Hope and its dependencies..., 1886, list of government land surveyors.
Heaton, J.R. Francis Skead, hydrographer. Africana Notes and News, 1975, Vol. 21(7), pp. 281-285.
National Automated Archival Information Retrieval System (NAAIRS). http://national.archives.gov.za/naairs.htm Documents relating to Watermeyer, C.P.