| Generation 1 - Andrew Dexter Irwin: Died - 27 Apr 2001 - Blount County, Tennessee |
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| Generation 2 - Oscar Guy Irwin: Born - 4 Jan 1909 - Blount County, Tennessee |
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| Generation 2 - Oscar Guy Irwin: Died - 20 Mar 1943 - Knoxville, Knox County, Tennessee |
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| Generation 2 - Oscar Guy Irwin: Buried - 23 Mar 1943 - Four Mile Cemetery, Blount County, Tennessee |
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| Generation 2 - Oscar Guy Irwin & Rena Lochiel Heaton: Married - 7 Dec 1934 - Blount County, Tennessee |
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| Generation 2 - Rena Lochiel Heaton: Died - 1 May 1976 - Knox County, Tennessee |
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| Generation 2 - Rena Lochiel Heaton: Buried - - Four Mile Cemetery, Blount County, Tennessee |
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| Generation 3 - John E. Irwin: Born - 6 Nov 1872 - Loudon County, Tennessee |
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| Generation 3 - John E. Irwin: Died - 25 Oct 1937 - Monroe County, Tennessee |
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| Generation 3 - John E. Irwin: Buried - 26 Oct 1937 - Four Mile Cemetery, Blount County, Tennessee |
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| Generation 3 - John E. Irwin & Mary Bell Allison: Married - 5 Mar 1896 - Blount County, Tennessee |
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| Generation 3 - Mary Bell Allison: Born - 21 Jul 1878 - Blount County, Tennessee |
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| Generation 3 - Mary Bell Allison: Buried - - Four Mile Cemetery, Blount County, Tennessee |
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| Generation 3 - Samuel Murphy "Sam" Heaton: Buried - - Four Mile Cemetery, Blount County, Tennessee |
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| Generation 3 - Kathryn McCulloch: Buried - - Four Mile Cemetery, Blount County, Tennessee |
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| Generation 4 - David H. Irwin & Martha L. Headrick: Married - 15 Dec 1870 - Blount County, Tennessee |
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| Generation 4 - William Allison: Buried - - Four Mile Cemetery, Blount County, Tennessee |
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| Generation 4 - Frances Caroline Emory: Buried - - Four Mile Cemetery, Blount County, Tennessee |
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| Generation 4 - William Heaton: Buried - - Nelson Chapel Cemetery, Blount County, Tennessee |
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| Generation 4 - Martha Susannah Thompson: Buried - - Nelson Chapel Cemetery, Blount County, Tennessee |
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| Generation 4 - Thomas Jefferson McCulloch: Buried - - Four Mile Cemetery, Blount County, Tennessee |
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| Generation 4 - Elizabeth Jane Anderson: Buried - - Four Mile Cemetery, Blount County, Tennessee |
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