| Generation 1 - Thomas Underwood: Born - Abt 1861 - Tennessee |
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| Generation 2 - John Thomas Underwood: Born - 6 Oct 1836 - Tennessee |
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| Generation 2 - John Thomas Underwood: Buried - - Underwood Family Cemetery, Sevier County, Tennessee |
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| Generation 2 - John Thomas Underwood & Mariah Jane Covington: Married - 19 Oct 1858 - Sevier County, Tennessee |
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| Generation 2 - Mariah Jane Covington: Born - 22 Nov 1834 - Tennessee |
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| Generation 2 - Mariah Jane Covington: Buried - - Underwood Family Cemetery, Sevier County, Tennessee |
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| Generation 3 - Thomas Underwood: Born - 4 Aug 1804 - Tennessee |
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| Generation 3 - Thomas Underwood: Buried - - Underwood Family Cemetery, Sevier County, Tennessee |
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| Generation 3 - Elizabeth Johnson: Born - 1 Aug 1813 - Tennessee |
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| Generation 3 - Elizabeth Johnson: Buried - - Underwood Family Cemetery, Sevier County, Tennessee |
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| Generation 3 - John Covington: Buried - - Mars Hill Cemetery, Knoxville, Knox County, Tennessee |
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| Generation 3 - Katherine Stickley: Buried - - Mars Hill Cemetery, Knoxville, Knox County, Tennessee |
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| Generation 4 - John Underwood: Born - 1767 - North Carolina |
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| Generation 4 - John Underwood: Buried - - Underwood Family Cemetery, Sevier County, Tennessee |
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| Generation 4 - Elizabeth Manifold: Buried - - Underwood Family Cemetery, Sevier County, Tennessee |
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