PERSON | PARENTS | GRANDPARENTS | GREAT-GRANDPARENTS | GREAT-GREAT-GRANDPARENTS |
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| | | | | 16 John Gazlay ( - ) |
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| | | | 8 John Gazlay (9 July 1722 - 9 August 1811) | |
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| | | | | | 17 Elizabeth Sayrs ( - ) |
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| | | 4 John Gazlay (11 January 1750 - 26 February 1813) | | |
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| | | | | 9 Anna Ward (9 November 1725 - 5 October 1798) | |
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| | 2 Daniel Gazlay (8 May 1778 - 6 May 1847) | | | |
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| | | | 5 Sarah Furman (ca. 1754 - 7 June 1821) | | |
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1 Erasmus Darwin Gazlay (17 April 1812 - 25 March 1887) | | | | | | | | |
| | | | 6 Amos Leavenworth ( - 2 September 1828) | | |
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| | 3 Susannah Leavenworth (21 September 1784 - 2 October 1841) | | | |
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| | | 7 Esther Warner ( - ) | | |
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