PERSON | PARENTS | GRANDPARENTS | GREAT-GRANDPARENTS | GREAT-GREAT-GRANDPARENTS |
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| | | | | 16 Stephen Purdy (17 September 1787 - 4 January 1853) | > |
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| | | | 8 James Haight Purdy (1816 - 2 January 1899) | |
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| | | | | | 17 Susan Haight (12 December 1791 - 30 March 1882) | > |
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| | | 4 Stewart Lewis Purdy (13 February 1847 - 9 December 1927) | | |
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| | | | | 9 Mary A. Lewis (1815 - 20 May 1889) | |
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| | 2 Dr. James Spencer Purdy (6 December 1873 - 28 January 1946) | | | |
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| | | | | | 10 Herman Spencer Barnes ( - ) | |
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| | | | 5 Josephine Barnes (1846 - 10 November 1899) | | |
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| | | | | 11 Deborah E. Groundy ( - ) | |
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1 Helen Barden Purdy (15 November 1910 - ) | | | | | | | | |
| | 3 Janet Seward Robinson (ca. 1875 - ) | | | |
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