|At this page we have had two links to sites that are currently not available or no longer existing. These links have been removed. This means that we now have no links to other related families. We consider links as such quite important so in case you have a family website and your family is related to the Kolffs please send us your information with the link.
Please let us know if you want a link.
We will only place links to sites that match our criteria.