List of sources:
Dippenaar, N.J. (Ed.) Staatsmuseum 100, p. 3. Pretoria: National Cultural History Museum, 1992.
FamilySearch: Jacob Willem Fockens. https://www.familysearch.org/tree/person/details/GRWJ-JQJ as on 10 May 2024.
Google scholar. http://scholar.google.co.za Publications by J.W. Fockens.
Gunning, J.W.B. A short history of the Transvaal Museum. Annals of the Transvaal Museum, 1908, Vol. 1(1), pp. 3-13.
Gutsche, T. There was a man. The life and times of Sir Arnold Theiler, KCMG, of Onderstepoort. Cape Town: Timmins, 1979.
Malherbe, D.F. du T. Family register of the South African nation, 3rd ed. Stellenbosch: Tegniek, 1966.
National Automated Archival Information Retrieval System (NAAIRS). http://www.national.archives.gov.za/naairs.htm Documents relating to Fockens, J.W.
Schutte, G.J. Seer teder beminde heer Vader en vrouw
Moeder: Brieven van de Groninger familie Fockens in de Oost, 1748-1783.
Hilversum: Verloren, 2014.
Shorten, J.R. The Johannesburg saga. Johannesburg: J.R. Shorten, 1970.
South African bibliography to the year 1925. London: Mansell, 1979.
South African who's who, 1908, W.J. Fockens.
Staats-Almanak der Zuid-Afrikaansche Republiek, 1896, pp. 92, 103; 1897, p. 67; 1898, pp. 70, 84.