Family: Karl Joseph Dreyer / Rosina Klingl (F79803)
Georg Rudolph Dreyer (1855-1938) 
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Theresia Kast (1857- )
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| Rudolf Anton Dreyer (1875- ) |
Julius Caesar Dreyer (1876-1932)  |
| Hermann Dreyer (1878-1965) |
| Wilhelm August Dreyer (1880-1953) |
| Rosalia Katharina Dreyer (1884- ) |
| Johannes Ludwig Dreyer (1885-1958) |
| Karl Joseph Dreyer (1882-1965)
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| Rosina Klingl (1890-1965) |
| Carl Joseph Dreyer (1912-2007) |
| Rosemary Dreyer (1921-2013) |
| Helen Ruth Dreyer (1926-1948) |