Lijsbert Jans Cuperus + Ynze Pieters Tigchelaar

Despite the fact that the connection between the two is not certain, it is likely. That will be explained on several pages in this site. Because it is possible that the descendants of the two are related, both family trees are on the site now.
The already excisting family tree of Lijsbert has been updated.
Also the graphical representations will be enhanced in the next couple of days.