| | Johann Jacob Peter Decker 1831– | | | | Heinrich Freyer 1786–1843 Karolina Decker 1784–1858 | | | | Johann Heinrich Freyer 1760–1807 Anna Louisa Rathmacher 1757– | | |
| | | Johann Jakob Michael Decker 1753– Regina Friederika Bayer 1760– | | | | Johann Peter Decker 1720– |
| | | Johann Jakob Bayer 1722–1789 |
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| | | Johann Nicolaus Decker 1795– Catharina Elisabeth Bollenbach – Margaretha Elisabeth Stein 1807– | | | | Friedrich Ludwig Decker 1755– | | | | Johann Peter Decker 1720– |
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