I read with interest your posting about the van Geyzel and Jansz families.My wife Sharon Estrop is related to you (3rd cousins in fact!).She is the g-grandaughter of Clara Lavinia van Geyzel, the sister of Lizzie Isabel van Geyzel and Theodosia Florence van Geyzel.
Your story about why their father Pieter left Ceylon for Malaya was of particular interest.Do you have any other similar anecdotes to share?
We have most of the van Geyzel family tree dating back to Martinus van Gyssele born in 1575 in Flanders, Belgium.I assume this is the same as your records from the Dutch Burgher Union of Ceylon?
Regards Daryl Pereira (of Canberra, Australia; presently working in Singapore)