toon familie-overzicht General overview and introduction

How to use the diagram and the 'tree icon' on the topleft?  
1. coloured name panels are clickable, in the background is detailed information available; the 'tree icon' returns you to the overview  
2. information goes back till around 1770, but here is a lot to be added  
3. Pierre Bernard Landsheere second wife and a couple of the children emigrated to the United States in 1893  
4. no other information is found yet than names on passengerlists that are filed at the Ellis Island registration system  
Finally: no, or almost no information is added about younger generation for privacy reasons  

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