♥ = Vorfahren Abraham JANSSEN >
| (1682-1746)x1710
Konrad Wilhelm JANSSEN | Anna Katharina BOCK > ♥
| (1725-1784)x1770 (1688-1775)
Johann Bernhard Isaak JANSSEN |
| (1777-1840)x1810 | Johann Adam BAUSCH > ♥
| | | (1712-1778)x1740
| | Maria Cornelia Elisabeth BAUSCH | Gertrud GOEBELS > ♥
| (1742-1794)x1770 (1702-1781)
Peter Konrad JANSSEN | _____________________________
| (1812-1870)x1841 | |
| | Johann Daniel HAUSMANN |_____________________________
| | | (....-1810)x1779
| | Katharina Elisabeth HAUSMANN |
| (1779-1833)x1810 | Johann Theodor NICKEL > ♥
| | | (1718-1774)x1741
| | Margaretha NICKEL | Katharina Elisabeth DAHMEN >
| (1749-1833)x1779 (1720-1786)
|--Franz Karl JANSSEN
| (1845-....) Albert BLANKERTZ > ♥
| | (1682-1744)x1716
| Philipp BLANKERTZ | Kunigunda STROMMENGER > ♥
| | (1718-1787)x1766 (1690-1774)
| Johann Peter BLANKERTZ |
| | (1774-1839)x1802 | Hermann REISGEN > ♥
| | | | (1691-1762)x1731
| | | Anna REISGEN | Walber DEUßEN > ♥
| | (1746-1825)x1766 (1707-1770)
| Anna Maria Magdalena BLANKERTZ |
(1815-1882)x1841 | Adam ROELEN >
| | (1697-1773)x1718
| Franz Matthias ROELEN | Anna Maria BOCK > ♥
| | (1730-....)x1774 (1696-1773)
| Ida Ursula ROELEN |
(1779-1852)x1802 | Moses LABBA
| | x1742
| Maria Katharina LABBA | Elisabeth HEINEN
(1742-1826)x1774