Dear Alice, I haven't heard anything from you since October 2006! I'm pleased that you have taken up your research again. In your last communication you said that you had only just started and had a lot yet to do. Izaak was my g.g. grandfather. He had a son Jan
Hendrick who had a son Edward Robert Nelus who had a daughter Rose who is my mother. Your ancester
Cornelius was also known as Albert who married two Lawrence sisters.
How did you get hold of Izaak's marriage certificate and Caroline's birth certificate? Any chance of copies of them and Cornelius's painting?
Best wishes
Harry