| 1. Mildred V. Opp |
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| B: |
22 Jul 1923 |
| P: |
Leola, McPherson County, South Dakota, USA |
| D: |
17 May 2008 |
| P: |
Standard, Tuolumne County, California, USA |
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| 2. Emil D. Opp |
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| B: |
14 Sep 1894 |
| P: |
Eureka, McPherson County, South Dakota, USA |
| M: |
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| P: |
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| D: |
8 Jan 1964 |
| P: |
California, USA |
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| 4. Daniel Opp |
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| B: |
10 Jul 1872 |
| P: |
Kassel, Odessa, Ukrayina |
| M: |
19 Nov 1893 |
| P: |
South Dakota, USA |
| D: |
16 Dec 1956 |
| P: |
Leola, McPherson County, South Dakota, USA |
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| 8. Johannes Daniel Opp |
=> |
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| B: |
23 Mar 1842 |
| P: |
Kassel, Odessa, Ukrayina |
| M: |
Abt 1866 |
| P: |
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| D: |
6 Jun 1916 |
| P: |
Eureka, McPherson County, South Dakota, USA |
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| 9. Katharina Gohl |
=> |
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| B: |
5 Apr 1847 |
| P: |
Kassel, Odessa, Ukrayina |
| D: |
16 Mar 1937 |
| P: |
Eureka, McPherson County, South Dakota, USA |
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| 5. Katharina Hoff |
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| B: |
9 Nov 1875 |
| P: |
Kassel, Odessa, Ukrayina |
| D: |
23 May 1962 |
| P: |
South Dakota, USA |
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| 10. Jakob Heinrich Hoff |
=> |
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| B: |
9 Sep 1851 |
| P: |
Kassel, Odessa, Ukrayina |
| M: |
Abt 1872 |
| P: |
Kassel, Odessa, Ukrayina |
| D: |
21 Sep 1930 |
| P: |
Eureka, McPherson County, South Dakota, USA |
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| 11. Magdalena Ladner |
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| B: |
10 Feb 1853 |
| P: |
Kassel, Odessa, Ukrayina |
| D: |
16 Nov 1894 |
| P: |
Eureka, McPherson County, South Dakota, USA |
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1923 - 2008 (84 years)