| Generation 1 | |
| [1.01 2] Conrad Mertens (1812-) | |
| Generation 2 | |
| [1.02 3] Joannes Mertens (1776-1844) | DEU |
| [2.01* ] Anna Catharina Königs (<1792-1845) | DEU |
| Generation 3 | |
| [1.03 4] Conradus Mertens (1735-1813) | DEU |
| [3.01* ] Margaretha Clooßen (<1745-1784) | DEU |
| Generation 4 | |
| [1.04* ] Peter Mertens (<1715->1735) | |
| [4.01* ] Catharina . (<1715->1735) |
