1918 - 1974 (55 years)| Name | William Joseph Seibert | |
| Birth | 18 Sep 1918 | Hartford, Connecticut, United States  |
| Gender | Male | |
| Death | 15 Apr 1974 | Freeport, Nassau, New York, United States |
| Burial | Green-Wood Cemetery, Brooklyn, New York City, New York, United States |
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| Person ID | I63721 | My Genealogy |
| Last Modified | 14 May 2025 | |
| Father | William Allysius Seibert, b. 22 Aug 1894, Bay Shore, Islip, Suffolk, New York, United States | |
| Mother | Evelyn Conklin, b. 1896, Long Island d. Jun 1955, Northport, Suffolk, New York, United States (Age 59 years) | |
| Marriage | 17 Aug 1913 | Smithtown, New York, USA [1] |
| Family ID | F26321 | Group Sheet | Family Chart |
| Family | Helen Fitzpatrick, b. 17 Apr 1925, Brooklyn, New York City, New York, United States d. 3 Jan 1999, Freeport, Nassau, New York, United States (Age 73 years) | |
| Marriage | 7 Apr 1945 | Brooklyn, Kings, New York, United States |
| Family ID | F41011 | Group Sheet | Family Chart |
| Last Modified | 31 Jul 2026 | |
| Sources |
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