| | Peter Josef Olbertz 1857–1923 Catharina Elisabeth Apollonia Janser 1859–1941 | | | | Mathias Josef Olbertz 1821–1895 Maria Josepha Woopen 1823–1923 | | | | Mathias Johannes Anton Olbertz 1797– Anna Catharina Keusch 1794– | | |
| | | Johannes Joseph Woopen 1785– Maria Catharina Bartz 1796–1871 | | |
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| | | Johann Josef Janser 1823–1887 | | | | Johann Mathias Janser 1773–1827 Catharina Elisabeth Scholl 1778–1843 | | |
| | | Mathias Wilhelm Klein 1792– Maria Catharina Frings 1793– | | |
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