| Generation 1 - Alvin Gerald Costner: Born - 27 Jan 1913 - Cocke County, Tennessee |
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| Generation 1 - Alvin Gerald Costner: Died - 13 Mar 1930 - Cocke County, Tennessee |
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| Generation 1 - Alvin Gerald Costner: Buried - 14 Mar 1930 - Tritt Cemetery, Cocke County, Tennessee |
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| Generation 2 - Edd Costner: Born - 31 Oct 1893 - Tennessee |
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| Generation 2 - Edd Costner: Buried - - Tritt Cemetery, Cocke County, Tennessee |
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| Generation 2 - Mary C. McGaha: Born - 25 Aug 1892 - Cocke County, Tennessee |
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| Generation 2 - Mary C. McGaha: Died - 26 Oct 1937 - Cocke County, Tennessee |
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| Generation 2 - Mary C. McGaha: Buried - 28 Oct 1937 - Tritt Cemetery, Cocke County, Tennessee |
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| Generation 3 - Joseph C. "J. C." Costner: Born - 17 Jun 1872 - Tennessee |
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| Generation 3 - Joseph C. "J. C." Costner: Died - 18 Apr 1941 - Cocke County, Tennessee |
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| Generation 3 - Joseph C. "J. C." Costner: Buried - - Union Cemetery, Newport, Cocke County, Tennessee |
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| Generation 3 - Roxie E. Sutton: Born - 1 Feb 1876 - Tennessee |
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| Generation 3 - Roxie E. Sutton: Died - 22 Mar 1923 - Cocke County, Tennessee |
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| Generation 3 - Roxie E. Sutton: Buried - 23 Mar 1923 - Tritt Cemetery, Cocke County, Tennessee |
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| Generation 3 - James Isaac McGaha: Born - 16 Sep 1867 - Cocke County, Tennessee |
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| Generation 3 - James Isaac McGaha: Buried - - McMahan Cemetery, Cocke County, Tennessee |
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| Generation 3 - James Isaac McGaha & Permelia Catherine Gunter: Married - 29 Dec 1889 - Cocke County, Tennessee |
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| Generation 3 - Permelia Catherine Gunter: Born - 17 Jan 1875 - Cocke County, Tennessee |
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| Generation 3 - Permelia Catherine Gunter: Buried - - McMahan Cemetery, Cocke County, Tennessee |
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| Generation 4 - Joseph Wilson Costner: Born - Abt 1842 - South Carolina |
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| Generation 4 - Jemima "Emma" Campbell: Born - Abt 1844 - Tennessee |
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| Generation 4 - John Corneilious "Jack" Sutton: Born - 22 Mar 1847 - Tennessee |
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| Generation 4 - Jane Tritt: Born - 11 Sep 1847 - North Carolina |
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| Generation 4 - Susan McGaha: Born - Apr 1842 - Tennessee |
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| Generation 4 - Susan McGaha: Buried - - McMahan Cemetery, Cocke County, Tennessee |
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| Generation 4 - John S. Gunter: Born - 10 May 1844 - North Carolina |
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| Generation 4 - John S. Gunter: Buried - - McMahan Cemetery, Cocke County, Tennessee |
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| Generation 4 - Phebe Webb: Born - 30 Mar 1848 - Cocke County, Tennessee |
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| Generation 4 - Phebe Webb: Buried - - McMahan Cemetery, Cocke County, Tennessee |
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