| Generation 1 | |
| [1.01 2] Joannes Petrus Pees (1785-) | DEU |
| Generation 2 | |
| [1.02 3] Johannes Paul Bees (1744->1794) | DEU |
| [2.01 4] Anna Catharina Buchholtz (1753->1794) | DEU |
| Generation 3 | |
| [1.03* ] Johann Heinrich Pees (<1723->1749) | DEU |
| [2.02* ] Appolinaris Bucholz (<1735->1756) | DEU |
| [3.01 5] Anna Wirtgen (~1718-1769) | DEU |
| [4.01* ] Agnes . (<1735->1756) | DEU |
| Generation 4 | |
| [3.02* ] Johann Wilhelm Wirtgen (<1686-1757) | DEU |
| [5.01* ] Elisabetha Schmid (<1688-1758) | DEU |
