Our Family History
The Genealogy of the Caauwe and Sommerfeld Families
Jacob Daniel Koch and Hannah Janssen Family
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 | Johann Joseph Koch (1821-1903)
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 | Maria Angeline Rheinfrank (1824-1896)
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 | Sabina Koch (1850-1929)  |
 | Phillip P. Cook (1852-1937) |
 | George C. Koch (1854-1925) |
| Susana Koch (1857-1884) |
| Anna Mary Koch (1859-1933) |
| Elizabeth Koch (1860-1937) |
| Caroline Koch (1863-1946) |
| John Felix Koch (1866-1943) |
| Charles Edward Koch (1868-1939) |
| William Adam Koch (1870-1927) |
| Joseph Henry Koch (1872-1949) |
| Jacob Daniel Koch (1851-1932)
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| Hannah Janssen (1896- ) |