Cornelia Johanna VAN HEERDEN married Frederik Johannes PRETORIUS 1915–1981 Johanna Hendrika PRETORIUS Willem Jacobus PRETORIUS Frederik Andries Jacobus PRETORIUS Frederik Johannes PRETORIUS Jacoba Johanna PRETORIUS Children of Cornelia Johanna VAN HEERDEN and Frederik Johannes PRETORIUS Johanna Hendrika PRETORIUS married to VAN DER MERWE Willem Jacobus PRETORIUS Frederik Andries Jacobus PRETORIUS Frederik Johannes PRETORIUS Jacoba Johanna PRETORIUS married to SLAUGHTER