Louisa Koch
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| Louisa Helfrich |
| Louisa Helfrich | |
| B: | 1859 |
| Belleville, Saint Clair County, Illinois, USA | |
| Henry Helfrich |
| Henry Helfrich | |
| B: | 1861 |
| Belleville, Saint Clair County, Illinois, USA | |
| John Helfrich |
| John Helfrich | |
| B: | 1865 |
| Belleville, Saint Clair County, Illinois, USA | |
| Louisa Koch |
| Louisa Koch | |
| B: | 1839 |
| Preußen | |
| D: | 31 Dec 1879 |
| Belleville, Saint Clair County, Illinois, USA | |
| Georg Helfrich |
| Georg Helfrich | |
| B: | 2 Jun 1825 |
| Sandbühler Hof, Schindhard, Pfalz, Bayern | |
| D: | 1881 |
| Belleville, Saint Clair County, Illinois, USA | |



