I came across your posting also by looking for my family history. I started a family tree on Geni.com & still looking for history further back. I was born Gwynneth Cecilia van Antwerp, my father is Cornel Josias van Antwerp, his father, my grandfather was Cornelius Marthinus van Antwerp & he was married to Maria Francis van Antwerp (nee Trichardt). My grandfathers father (my great grandfather) was Josias van Antwerpen & he was married to Magdalena van Antwerpen. My great grandfathers father was Cornelis van Antwerpen & his mother was Francina Magdalena van Antwerpen (nee Olkers). The only family i know of on my grandfathers side is two of his sisters, Frances Duke (nee van Antwerp) & Miriam (not sure of her married name). That is as far as i've gotten. Would love to hear if you are at all related to us.