+---- Nicolaas Nelis 1853-1929
+---- Franciscus Cornelis Nelis
| +---- Albertina Johanna van Baalen 1867-1938
+---- Nicolaas Nelis
| | +---- Bernardus van der Ham 1873-1961
| +---- Johanna van der Ham
| +---- Maria Vallinga 1870-1958
+---- Nicolaas Franciscus Nelis
| | +---- Leonardus Arnoldus van Puffelen
| +---- Jacoba Antonia van Puffelen
| +---- Jacoba Antonia Schumacher
==== Martijn Nelis
| +---- Marinus Karssen
+---- Willemina Christina Karssen
+---- Stijntje van der Velden
|