│          │ :         ├─ Horace Edmund Blackburn
(25 Apr 1876 Jefferson County, Tennessee, USA -
         │          │ :         │ 19 Jun 1919 Knoxville, Knox County, Tennessee, USA)
         │          │ :         │ +
Ida Belle Rankin
(18 Aug 1879 Jefferson County, Tennessee, USA - 19 May 1905 Knoxville, Knox County, Tennessee, USA)
         │          │ :         │          └─ Horace Ireland Blackburn
(25 Aug 1910 Francisco, Gibson County, Indiana, USA -
         │          │ :         │           1 Jul 1972 Hutchinson, Reno County, Kansas, USA)
         │          │ :         │ +
Mark Roy Rankin
(Jefferson County, Tennessee, USA;1 Sep 1875 - 2 Jun 1948)
         │          │ :         ├─ Charles Ardra Blackburn
(20 Jul 1878 Dandridge, Jefferson County, Tennessee, USA -
         │          │ :         │ 25 Mar 1962 bur.Dandridge, Jefferson County, Tennessee, USA)
         │          │ :         │          ├─ Orrill Louise Blackburn
(9 Feb 1907 Knoxville, Knox County, Tennessee, USA -
         │          │ :         │          │ 2002 Kingsport, Sullivan County, Tennessee, USA)
         │          │ :         │          │ +
Dillon Rymer McClary
(1909 Savannah, Chatham County, Georgia, USA - 16 May 1973 Peru)
         │          │ :         ├─ Effie P Blackburn
(10 Mar 1880 Jefferson County, Tennessee, USA -
         │          │ :         │ 11 Feb 1970 Columbia, Richland County, South Carolina, USA)
         │          │ :         │ +
Mac Calvin Franklin
(18 Sep 1880 Tennessee, USA - 6 Feb 1962 bur.Dandridge, Jefferson County, Tennessee, USA)
         │          │ :         │ +
Charles Homer Babb, Sr
(Greene County, Tennessee, USA;11 Jun 1893 - 18 Nov 1949)
         │          │ :         ├─ Frederick Alexander Blackburn
(19 May 1881 Dandridge, Jefferson County, Tennessee, USA -
         │          │ :         │ 14 Oct 1944 Knoxville, Knox County, Tennessee, USA)
         │          │ :         │          │ +
Harry James Thayer
(21 Mar 1907 Kanawha County, West Virginia, USA -
         │          │ :         │          │ 7 May 1961 bur.Knoxville, Knox County, Tennessee, USA)
         │          │ :         │          └─ Marguerite Blackburn
(Abt 1917 Knoxville, Knox County, Tennessee, USA -
         │          │ :         │           ?? bur.Knoxville, Knox County, Tennessee, USA)
         │          │ :         │           +
John W Grigsby, Sr
(11 Dec 1911 Hamblen County, Tennessee, USA -
         │          │ :         │           6 Jul 1985 Knoxville, Knox County, Tennessee, USA)
         │          │ :         ├─ Katherine Louise Blackburn
(22 Nov 1882 Jefferson County, Tennessee, USA -
         │          │ :         │ 11 Oct 1979 bur.Knoxville, Knox County, Tennessee, USA)
         │          │ :         │ +
Colonel Sawyers Needham
(27 Nov 1882 Tennessee, USA - 11 Feb 1963 bur.Knoxville, Knox County, Tennessee, USA)
         │          │ :         ├─ Ralph Miller Blackburn
(21 Feb 1884 Jefferson County, Tennessee, USA -
         │          │ :         │ 21 Apr 1953 Morristown, Hamblen County, Tennessee, USA)
         │          │ :         │          └─ Alice Harriette Blackburn
(24 May 1924 Hamblen County, Tennessee, USA -
         │          │ :         │           8 Sep 1947 Morristown, Hamblen County, Tennessee, USA)
         │          │ :         │           +
James Lawrence Jenkins
( - unbknown)
         │          │ :         ├─ Anna Estelle Blackburn
(8 Apr 1885 Jefferson County, Tennessee, USA -
         │          │ :         │ 19 Dec 1965 bur.New Market, Jefferson County, Tennessee, USA)
         │          │ :         │ +
Frederic Charles Coldwell
(Jefferson County, Tennessee, USA;25 Feb 1880 - 17 Oct 1967)
         │          │ :         │ +
Benjamin Wallace McMurry
(3 Jun 1882 Jefferson County, Tennessee, USA -
         │          │ :         │ 28 Apr 1966 Dandridge, Jefferson County, Tennessee, USA)
         │          │ :         └─ Nina Moore Blackburn
(4 Mar 1892 Jefferson County, Tennessee, USA -
         │          │ :          10 Sep 1963 White Pine, Jefferson County, Tennessee, USA)
         │          │ :          +
Ferd Barches Cowan, Sr
(7 Jun 1884 Jefferson County, Tennessee, USA -
         │          │ :          1 Jan 1954 Knoxville, Knox County, Tennessee, USA)
         │          │          ├─ Elizabeth Jane Blackburn
(2 Sep 1873 Jefferson County, Tennessee, USA -
         │          │          │ 1 May 1960 Knoxville, Knox County, Tennessee, USA)
         │          │          ├─ Priscillia Velma Blackburn
(Abt 1872 Jefferson County, Tennessee, USA -
         │          │          │ 29 Jun 1951 Knoxville, Knox County, Tennessee, USA)
         │          │          │ +
Melvel G Sloat
(11 Jun 1863 Jefferson County, Tennessee, USA - 3 Jul 1951 Knoxville, Knox County, Tennessee, USA)
         │          │          ├─ Martha Miranda Blackburn
(7 Aug 1877 Jefferson County, Tennessee, USA -
         │          │          │ 23 Dec 1943 bur.White Pine, Jefferson County, Tennessee, USA)
         │          │          │ +
Joseph Portrum Newman
(Jul 1875 Jefferson County, Tennessee, USA -
         │          │          │ 4 Mar 1965 bur.White Pine, Jefferson County, Tennessee, USA)
         │                    ├─ Frank Eckel Blackburn
(18 Sep 1876 Jefferson County, Tennessee, USA -
         │                    │ 7 Apr 1915 Morristown, Hamblen County, Tennessee, USA)
         │                    │ +
Dora Angivine Smith
(Mar 1883 Hamblen County, Tennessee, USA - 8 Sep 1909 Morristown, Hamblen County, Tennessee, USA)
         │                    │          │          ├─ Barbra Ann Blackburn
(11 Oct 1934 Johnson City, Washington County, Tennessee, USA -
         │                    │          │          │ 1 Oct 2007 Damascus, Washington County, Virginia, USA)
         │                    │          │          │ +
Joseph W. Goolsby
(24 Jun 1928 Johnson City, Washington County, Tennessee, USA -
         │                    │          │          │ 26 Jun 2013 Damascus, Washington County, Virginia, USA)
         │                    │          │          ├─ Living
         │                    │          │          └─ Living
         │                    │          ├─ George Templeton Blackburn
(25 Nov 1921 Johnson City, Washington County, Tennessee, USA -
         │                    │          │ 23 Oct 2003 Henderson, Vance County, North Carolina, USA)
         │                    │          │ +
Marjoree W Silks
(5 Aug 1922 Georgia, USA - 4 Jul 1981 Henderson, Vance County, North Carolina, USA)
         │                    │          └─ Charles Franklin Blackburn
(30 Apr 1925 Cleveland, Bradley County, Tennessee, USA -
         │                    │           15 Oct 2013 North Carolina, USA)
         │                    │           Living
         │                    │                    └─ Living