| 1. John J. Opp |
 |
| B: |
5 Jul 1901 |
| P: |
Eureka, McPherson County, South Dakota, USA |
| D: |
7 Jun 1983 |
| P: |
Eureka, McPherson County, South Dakota, USA |
|
| 2. Johannes Daniel Opp |
|
| B: |
3 Feb 1877 |
| P: |
Kassel, Odessa, Ukrayina |
| M: |
22 Nov 1898 |
| P: |
Eureka, McPherson County, South Dakota, USA |
| D: |
11 Nov 1953 |
| P: |
Eureka, McPherson County, South Dakota, USA |
|
| 4. Johannes Daniel Opp |
|
| B: |
23 Mar 1842 |
| P: |
Kassel, Odessa, Ukrayina |
| M: |
Abt 1866 |
| P: |
|
| D: |
6 Jun 1916 |
| P: |
Eureka, McPherson County, South Dakota, USA |
|
| 8. Daniel Opp |
=> |
|
| B: |
14 Jun 1804 |
| P: |
Ungarn |
| M: |
Abt 1832 |
| P: |
Odessa, Ukrayina |
| D: |
26 Oct 1871 |
| P: |
Kassel, Odessa, Ukrayina |
|
|
|
| 5. Katharina Gohl |
|
| B: |
5 Apr 1847 |
| P: |
Kassel, Odessa, Ukrayina |
| D: |
16 Mar 1937 |
| P: |
Eureka, McPherson County, South Dakota, USA |
|
|
| 11. Anna Maria Klein |
|
| B: |
2 Jan 1811 |
| P: |
Odessa, Ukrayina |
| D: |
25 Feb 1852 |
| P: |
Odessa, Ukrayina |
|
| 3. Elizabeth Neuharth |
|
| B: |
10 Feb 1881 |
| P: |
Eureka, McPherson County, South Dakota, USA |
| D: |
16 Aug 1967 |
| P: |
Eureka, McPherson County, South Dakota, USA |
|
| 6. Georg Neuhardt Neuharth |
|
| B: |
22 Dec 1838 |
| P: |
Kassel, Odessa, Ukrayina |
| M: |
2 Feb 1864 |
| P: |
Kassel, Odessa, Ukrayina |
| D: |
1904 |
| P: |
Eureka, McPherson County, South Dakota, USA |
|
| 12. Ludwig Neuhardt |
=> |
|
| B: |
4 Jul 1815 |
| P: |
Kassel, Odessa, Ukrayina |
| M: |
28 Apr 1836 |
| P: |
Kassel, Odessa, Ukrayina |
| D: |
4 Jul 1869 |
| P: |
Kassel, Odessa, Ukrayina |
|
|
|
| 7. Elisabetha Rosin |
|
| B: |
11 Apr 1839 |
| P: |
Kassel, Odessa, Ukrayina |
| D: |
1916 |
| P: |
Eureka, McPherson County, South Dakota, USA |
|
| 14. |
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| 15. |
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1901 - 1983 (81 years)