| 1. Frederick E. Marquardt |
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| B: |
26 Oct 1931 |
| P: |
Brooklyn, Kings County, New York, USA |
| D: |
19 Aug 1996 |
| P: |
East Setauket, Suffolk County, New York, USA |
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| 2. Frederick E. Marquardt |
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| B: |
7 Mar 1905 |
| P: |
New York, USA |
| M: |
1 Mar 1929 |
| P: |
Brooklyn, Kings County, New York, USA |
| D: |
28 Jun 1965 |
| P: |
New York, USA |
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| 3. Alice Hafner |
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| B: |
10 Jan 1910 |
| P: |
Brooklyn, Kings County, New York, USA |
| D: |
11 Jul 1998 |
| P: |
Brooklyn, Kings County, New York, USA |
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| 6. John Hafner |
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| B: |
0Sep 1872 |
| P: |
Brooklyn, Kings County, New York, USA |
| M: |
26 Jul 1896 |
| P: |
Brooklyn, Kings County, New York, USA |
| D: |
29 Mar 1911 |
| P: |
Brooklyn, Kings County, New York, USA |
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| 12. Simon Hafner |
=> |
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| B: |
31 May 1846 |
| P: |
Stein, Pfalz, Bayern |
| M: |
22 Oct 1871 |
| P: |
Brooklyn, Kings County, New York, USA |
| D: |
28 May 1905 |
| P: |
Brooklyn, Kings County, New York, USA |
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1931 - 1996 (64 years)