+---- Peter Jungferman ca 1620-
+---- Stefanus Jungferman 1652-1731
| +---- Elisabeth NN
+---- Johan Casper Juffermans 1698-1758
| +---- Clara Berkhoff
+---- Johan Casper Juffermans 1726-1799
| +---- Clara Bucckers †1732
==== Dirk Juffermans 1769-
+---- Anna Maria de Groot 1744-1779
|