See studies by K. Wiekart (tr. 1965) and E. Taverne et al. (2001).
Jacobus Johannes Venter (1814 - 1889) was a South African (Boer) politician. He was a member of the Volksraad of the Orange Free State, chairman of the Joint Commission for Administering the Government in 1855 and served as Acting State President in 1859 – 1860 and again in 1863 – 1864.
Four towns in South Africa were named after the Venter clan: Ventersdorp, Venterstad; Venterspos and Ventershoop (see Google search).
One of his descendants is psychologist Dr Elma Ross.