+---- Pieter Francies Eijsackers 1867-
+---- Jacobus Leonardus Petrus Eysackers
| +---- Frederika Maria Gordijn 1870-1942
+---- Jacobus Leonardus Fredericus Eijsackers
| +---- Maria Coletta van Gijzel
+---- Jacobus Leonardus Fredericus Eijsackers
| | +---- Nicolaas Nelis 1853-1929
| | +---- Franciscus Cornelis Nelis
| | | +---- Albertina Johanna van Baalen 1867-1938
| +---- Francisca Cornelia Maria Nelis
| | +---- Bernardus van der Ham 1873-1961
| +---- Johanna van der Ham
| +---- Maria Vallinga 1870-1958
==== Tom Eijsackers
+---- Alexandra de Bruijne
|