| Generation 1 - William A. Cogdill: Born - 16 Jul 1905 - Tennessee |
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| Generation 1 - William A. Cogdill: Died - 12 Dec 1955 - Knox County, Tennessee |
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| Generation 1 - William A. Cogdill: Buried - 14 Dec 1955 - Highland Memorial Park Cemetery, Knoxville, Knox County, Tennessee |
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| Generation 2 - Merit R. Cogdill: Born - Jul 1883 - Tennessee |
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| Generation 2 - Loutitis Millinger: Born - Abt 1884 - Tennessee |
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| Generation 3 - William Avery Cogdill: Born - 1 Apr 1861 - Georgia |
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| Generation 3 - William Avery Cogdill: Buried - - Elkmont Cemetery, Sevier County, Tennessee |
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| Generation 3 - William Avery Cogdill & Louisa S. Lyles: Married - 13 May 1880 - Sevier County, Tennessee |
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| Generation 3 - Louisa S. Lyles: Born - 24 Sep 1860 - Tennessee |
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| Generation 3 - Louisa S. Lyles: Died - 19 Feb 1938 - Sevier County, Tennessee |
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| Generation 3 - Louisa S. Lyles: Buried - 20 Feb 1938 - Elkmont Cemetery, Sevier County, Tennessee |
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| Generation 4 - Leonard Blackburn Cogdill: Born - 28 Nov 1833 - North Carolina |
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| Generation 4 - Leonard Blackburn Cogdill: Buried - - Cogdill Cemetery, Sevier County, Tennessee |
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| Generation 4 - Leonard Blackburn Cogdill & Nancy Jane Fleming: Married - 4 Oct 1854 - Madison County, North Carolina |
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| Generation 4 - Nancy Jane Fleming: Born - 27 Jul 1838 - North Carolina |
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| Generation 4 - Nancy Jane Fleming: Buried - - Cogdill Cemetery, Sevier County, Tennessee |
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| Generation 4 - Napoleon B. "Nip" Lyle: Born - Abt 1837 - Tennessee |
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| Generation 4 - Napoleon B. "Nip" Lyle & Francis "Fanny" Langston: Married - 5 Oct 1857 - Sevier County, Tennessee |
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| Generation 4 - Francis "Fanny" Langston: Born - 18 Jan 1840 - Tennessee |
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| Generation 4 - Francis "Fanny" Langston: Died - 25 May 1909 - Sevier County, Tennessee |
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| Generation 4 - Francis "Fanny" Langston: Buried - - Williamsburg Cemetery, Sevier County, Tennessee |
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