I have a marriage of a Martha Jacoba van Wyk to Johannes Jacob van Tonder on 8 October 1810 in Graaff-Reinet --- could this be her? https://www.familysearch.org/ark:/61903/3:1:3Q9M-C91K-J3SW-T?i=29&a...
If so then is it possible that she is the mother of Jan Johannes Jacbos van Tonder who is the father of Johanna Susanna Adriana van Tonder (1842-1897)(DN https://www.familysearch.org/ark:/61903/3:1:3QSQ-G9LW-J9ZB-Z?cat=19...) and wife of Elizabeth Johanna de Beer.
There is a gap in the document here so hoping someone has more information.
