| Generation 1 - William Milo McMahan: Born - Abt 1909 - Tennessee |
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| Generation 2 - Calvin V. McMahan: Born - Abt 1885 - Tennessee |
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| Generation 2 - Calvin V. McMahan: Died - 26 Sep 1956 - Cocke County, Tennessee |
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| Generation 2 - Calvin V. McMahan & Ellen R. Lunsford: Married - 30 Oct 1904 - Tennessee |
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| Generation 2 - Ellen R. Lunsford: Born - Jun 1887 - Tennessee |
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| Generation 2 - Ellen R. Lunsford: Died - 27 Jun 1930 - Cocke County, Tennessee |
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| Generation 3 - William "Gulger Bill" McMahan: Born - 1838 - Tennessee |
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| Generation 3 - William "Gulger Bill" McMahan & Harriet Allen: Married - 6 Jun 1860 - Sevier County, Tennessee |
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| Generation 3 - Harriet Allen: Born - Abt 1842 - Tennessee |
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| Generation 4 - William "Bill" McMahan: Born - 1804 - North Carolina |
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| Generation 4 - William "Bill" Allen: Born - 12 Nov 1812 - Tennessee |
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| Generation 4 - Rhoda Allen: Born - 1814 - Tennessee |
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