Petronella Johanna VERMAAK married Gert Gustavus PRETORIUS 1930–1964 Johannes Petrus Willem PRETORIUS Helenus Gustavus PRETORIUS Children of Petronella Johanna VERMAAK and Gert Gustavus PRETORIUS Johannes Petrus Willem PRETORIUS married to Aletta Johanna BOTHMA Helenus Gustavus PRETORIUS married to Barendina Susanna VERSTER