Timeline Chart
 William Herman Polenz |
 Emma Demske |
Gehardt Carl Polens |
1874--
1875--
1878--
1881--
1884--
1887--
1890--
1893--
1896--
1899--
1902--
1905--
1908--
1911--
1914--
1917--
1920--
1923--
1926--
1929--
1932--
1935--
1938--
1941--
1944--
1947--
1950--
1953--
1956--
1959--
1962--
1965--
1968--
1971--
1974--
1977--
1980--
| Birth--23 July 1879 - Detroit, Wayne, Michigan, USA (Age 0) |
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| Birth--13 September 1879 - Detroit, Wayne, Michigan, USA (Age 0) |
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| Birth--23 March 1907 (Age 0) |
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| Death--3 March 1965 - Detroit, Wayne, Michigan, USA (Age 85) |
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| Death--13 September 1965 - Detroit, Wayne, Michigan, USA (Age 86) |
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| Death--14 February 1975 - Detroit, Wayne, Michigan, USA (Age 67) |
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