| Generation 1 - Elbert Hardin: Born - 12 Sep 1891 - Tennessee |
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| Generation 1 - Elbert Hardin: Buried - - Oak Grove Cemetery, Sevier County, Tennessee |
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| Generation 2 - William T. "Billie" Hardin: Born - Jul 1855 - Tennessee |
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| Generation 2 - Sarah Eveline Underwood: Born - 2 Jun 1856 - Tennessee |
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| Generation 2 - Sarah Eveline Underwood: Died - 1 Dec 1935 - Sevier County, Tennessee |
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| Generation 2 - Sarah Eveline Underwood: Buried - 2 Dec 1935 - Oak Grove Cemetery, Sevier County, Tennessee |
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| Generation 3 - Lewis M. Underwood: Born - Abt 1831 - Sevier County, Tennessee |
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| Generation 3 - Lewis M. Underwood & Mary Ann Long: Married - 4 Sep 1856 - Knox County, Tennessee |
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| Generation 3 - Mary Ann Long: Born - Abt 1832 - Sevier County, Tennessee |
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| Generation 4 - Hiram Underwood: Born - Abt 1800 - Tennessee |
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| Generation 4 - Sarah: Born - Abt 1812 - Virginia |
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