Hi Penny - thks.I have found that website since originally posting my message. Who are the parents of yr gr grandmother ? Below is the Pretorius tree that I am researching, as far as I have been able to establish.
Johannes Pretorius - born 1680 / died 1732 - married Helena Vosloo.
Jacobus Pretorius - born 1724 / died bef 1778 - married Johanna Christina van den Berg.
Gerrit Pretorius - born 1768 / died 1841 - married 1.Aletta Johanna Petronella Calitz 2.Jannetjie van Zyl. Jacobus Pretorius - born May 1794 / died July 1861 - married 1. Catherina Josepha Stassen 2. Margaretha Maria van Tonder 3. Frederica Jacoba Strydom
Carel Christiaan Pretorius (of 1st marriage) born 1836 / died ? - married 1. Cornelia Margaretha Coetzer 2. Maria Magdalena le Grange.
Gerrit Jacobus Pretorius (of 2nd marriage) born 1861 / died ? - married Maria Francina Strydom.
Carel Christiaan Pretorius - born 1882 Calitzdorp / died 1974 Dundee - married Martha Elizabeth Smith.