+———Abraham Johnston          |      +———Dudley G. Johnston (1799 NC – )      |   |          |   +———Susannah Unknown      |  +———Thomas L. Johnson (21 Sep 1835 TN – 9 Mar 1915 Hardin Co, TN)  |   |          |   |   +———James Bishop (1766 – )  |   |   |  |   +———Mary W. Bishop (1802 NC – )  |       |              |       |       +———Robert Williamson  |       |       |  |       |   +———George Williamson (1760 – )  |       |   |   |      |       |   |   +———Elizabeth Unknown  |       |   |  |       +———Tabitha Williamson (1780 – )  |           |                  |           |           +———William N. Norwood (1620 England – )  |           |           |  |           |       +———George Norwood (1676 – 1749)  |           |       |   |      |           |       |   +———Lydia Jordan  |           |       |  |           |   +———Samuel L. Norwood (1698 – 1795)  |           |   |  |           +———Mary Norwood  |               |          |               |   +———Robert Smith (1726 – )  |               |   |  |               +———Mary Smith  |      Gavin Ovid Johnson (21 Jan 1866 Morris Chapel, Hardin Co, TN – 22 Apr 1947 Duncan, Stephens Co, OK)  |                  |           +———Ansel Edward Ned Parrish (1740 WV – 1843)  |           |  |       +———Burrell Parrish (1777 NC – 10 Nov 1852 Hardin Co, TN)  |       |  |   +———Cordy Cardy Parrish (25 May 1806 NC – 12 Feb 1879 Hardin Co, TN)  |   |   |      |   |   +———Rebecca Unknown (1772 NC – 6 Dec 1860 Hardin Co, TN)  |   |  +———Leannah C. Parrish (29 Oct 1837 Hardin Co, TN – 30 Oct 1907 Hardin Co, TN)      |          +———Mary A. Unknown (14 Apr 1808 TN – 7 Mar 1841 Hardin Co, TN)