Família: Johann Jakob Grassmann / Eva Christina Zinn (F7780)
cas. 25 Fev 1800Heinrich Peter Grassmann (1747-1795) 
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Sophia Elisabeth Griebel (1752-1781)
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| Heinrich Mathias Grassmann (1777-1780) |
Johann Andreas Grassmann (1780-1855)  |
| Johann Jakob Grassmann (1773-1815)
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| Eva Christina Zinn (1780-1836) |