+---- Ruud Mooijman
==== Coen Rudolf Bernardus Mooijman
| +---- Nicolaas Nelis 1853-1929
| +---- Franciscus Cornelis Nelis
| | +---- Albertina Johanna van Baalen 1867-1938
| +---- Bernardus Jozef Nelis
| | | +---- Bernardus van der Ham 1873-1961
| | +---- Johanna van der Ham
| | +---- Maria Vallinga 1870-1958
+---- Elisabeth Eleonore Nelis
| +---- Johannes Hendrikus Martinus Grottendieck
+---- Maria Johanna Grottendieck
+---- Joanna Maria van Ruth
|