| 1. Johann Christian Gassmann |
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| B: |
14 Feb 1776 |
| P: |
Hertmannsweiler, Wurttemberg, Germany |
| D: |
1840 |
| P: |
Hertmannsweiler, Wurttemberg, Germany |
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| 2. Christian Gassmann |
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| B: |
22 Dec 1744 |
| P: |
Hertmannsweiler, Wurttemberg, Germany |
| M: |
1770 |
| P: |
Hertmannsweiler, Wurttemberg, Germany |
| D: |
1835 |
| P: |
Hertmannsweiler, Wurttemberg, Germany |
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1776 - 1840 (63 years)