| Generation 1 - Hilda Rae Lett: Born - 16 Aug 1926 - Tennessee |
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| Generation 2 - John Houk Lett: Born - 22 Apr 1894 - Anderson County, Tennessee |
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| Generation 2 - John Houk Lett & Gertrude E. Cowan: Married - 17 Mar 1924 - Anderson County, Tennessee |
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| Generation 2 - Gertrude E. Cowan: Born - 30 Nov 1902 - Tennessee |
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| Generation 3 - Henry Lett: Born - 2 Nov 1865 - Tennessee |
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| Generation 3 - Mary Ann Warwick: Born - 9 Aug 1871 - Tennessee |
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| Generation 3 - Mary Ann Warwick: Died - 30 Nov 1947 - Knox County, Tennessee |
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| Generation 3 - David S. Cowan: Born - 19 Jan 1866 - Tennessee |
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| Generation 3 - David S. Cowan & Mary Ann Hicks: Married - 24 Dec 1886 - Sevier County, Tennessee |
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| Generation 3 - Mary Ann Hicks: Born - 22 Sep 1862 - Tennessee |
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| Generation 4 - Billy Warwick: Born - - Tennessee |
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| Generation 4 - Mary Fraker: Born - - Tennessee |
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| Generation 4 - James Marion Cowan: Born - 12 Feb 1821 - Tennessee |
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| Generation 4 - James Marion Cowan: Buried - - Boyds Creek Cemetery, Sevier County, Tennessee |
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| Generation 4 - Margaret Palmer: Born - 21 Jun 1824 - Tennessee |
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| Generation 4 - Margaret Palmer: Buried - - Boyds Creek Cemetery, Sevier County, Tennessee |
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| Generation 4 - Casewell Hicks: Buried - - Seven Islands Cemetery, Knox County, Tennessee |
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| Generation 4 - Casewell Hicks & Charlotte "Charity" Ailsy: Married - 29 Aug 1839 - Knox County, Tennessee |
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| Generation 4 - Charlotte "Charity" Ailsy: Buried - - Seven Islands Cemetery, Knox County, Tennessee |
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