| 1. Helen P. Mershon |
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| B: |
9 Mar 1903 |
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Iowa, USA |
| D: |
1 Feb 1990 |
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Madera, Madera County, California, USA |
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| 3. Laura Schroeder |
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| B: |
1883 |
| P: |
Des Moines, Polk County, Iowa, USA |
| D: |
1930 |
| P: |
Des Moines, Polk County, Iowa, USA |
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| 6. Karl A. Schröder Schroeder |
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| B: |
0Sep 1851 |
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Hamburg |
| M: |
29 Nov 1871 |
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Clark County, Missouri, USA |
| D: |
6 Jan 1934 |
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Des Moines, Polk County, Iowa, USA |
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| 7. Laura Blattner |
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| B: |
22 Nov 1851 |
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Cincinnati, Hamilton County, Ohio, USA |
| D: |
15 Jul 1927 |
| P: |
Des Moines, Polk County, Iowa, USA |
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| 14. Heinrich Blättner Blattner |
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| B: |
12 Jan 1822 |
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Steinweiler, Pfalz, Bayern |
| M: |
5 Aug 1841 |
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Brown County, Ohio, USA |
| D: |
26 Jan 1895 |
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Clark County, Missouri, USA |
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1903 - 1990 (86 years)