| Generation 1 - Jess B. McMahan: Born - 13 Jan 1890 - Tennessee |
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| Generation 1 - Jess B. McMahan: Buried - - Shiloh Cemetery, Pigeon Forge, Sevier County, Tennessee |
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| Generation 2 - Isaac Mitchell Dixon McMahan: Born - 26 Jan 1866 - Tennessee |
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| Generation 2 - Isaac Mitchell Dixon McMahan: Died - 20 Feb 1943 - Monroe County, Tennessee |
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| Generation 2 - Isaac Mitchell Dixon McMahan: Buried - 21 Feb 1943 - Shiloh Cemetery, Pigeon Forge, Sevier County, Tennessee |
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| Generation 2 - Isaac Mitchell Dixon McMahan & Rebecca Jane Catlett: Married - 11 Mar 1886 - Sevier County, Tennessee |
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| Generation 2 - Rebecca Jane Catlett: Born - 22 Aug 1864 - Tennessee |
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| Generation 2 - Rebecca Jane Catlett: Died - 15 Apr 1926 - Sevier County, Tennessee |
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| Generation 2 - Rebecca Jane Catlett: Buried - 16 Apr 1926 - Shiloh Cemetery, Pigeon Forge, Sevier County, Tennessee |
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| Generation 3 - John Calvin McMahan: Born - 19 May 1807 - Washington County, Tennessee |
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| Generation 3 - John Calvin McMahan: Buried - - Shiloh Cemetery, Pigeon Forge, Sevier County, Tennessee |
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| Generation 3 - Dicie W. Ault: Born - 6 Sep 1821 - Tennessee |
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| Generation 3 - Dicie W. Ault: Buried - - Shiloh Cemetery, Pigeon Forge, Sevier County, Tennessee |
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| Generation 3 - Loftus Henry "Lofty" Catlett: Born - 22 Nov 1822 - Tennessee |
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| Generation 3 - Loftus Henry "Lofty" Catlett: Buried - - Shiloh Cemetery, Pigeon Forge, Sevier County, Tennessee |
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| Generation 3 - Jane Cowden: Born - 6 Jan 1825 - Tennessee |
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| Generation 3 - Jane Cowden: Buried - - Shiloh Cemetery, Pigeon Forge, Sevier County, Tennessee |
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| Generation 4 - James Wellington McMahan: Born - Abt 1750/1755 - Dublin, Ireland |
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| Generation 4 - James Wellington McMahan: Died - 16 Sep 1831 - Sevierville, Sevier County, Tennessee |
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| Generation 4 - James Wellington McMahan: Buried - - Sevier County, Tennessee |
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| Generation 4 - James Wellington McMahan & Rachel Calvert: Married - 1 Dec 1788 - , Botetourt, Virginia |
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| Generation 4 - Rachel Calvert: Born - Abt 1760 - England |
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| Generation 4 - Lynn W. Cowden: Born - Abt 1797 - South Carolina |
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| Generation 4 - Lynn W. Cowden: Died - 1885 - Sevier County, Tennessee |
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