| Generation 1 - Isaac Allen McMahan: Born - 13 Jun 1874 - Tennessee |
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| Generation 1 - Isaac Allen McMahan: Buried - - McMahan Cemetery, Cocke County, Tennessee |
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| Generation 2 - Henderson McMahan: Born - 1 Nov 1839 - Tennessee |
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| Generation 2 - Henderson McMahan: Buried - - McMahan Cemetery, Cocke County, Tennessee |
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| Generation 2 - Anna McGaha: Born - - Tennessee |
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| Generation 3 - William Mansfield "Bill" McMahan: Born - 1814 - Tennessee |
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| Generation 3 - William Mansfield "Bill" McMahan: Buried - - McMahan Cemetery, Cocke County, Tennessee |
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| Generation 3 - Rhoda Elvira Giles: Born - 18 Jul 1821 - Tennessee |
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| Generation 3 - Rhoda Elvira Giles: Buried - - McMahan Cemetery, Cocke County, Tennessee |
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| Generation 4 - Eli McMahan: Born - 1782 - North Carolina |
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| Generation 4 - Eli McMahan: Died - - Cocke County, Tennessee |
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| Generation 4 - Jesse Giles: Born - 1789 - South Carolina |
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| Generation 4 - Jesse Giles & Phoebe Baxter: Married - 1818 - Cocke County, Tennessee |
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| Generation 4 - Phoebe Baxter: Born - 1801 - Tennessee |
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