Jackson married Sophronia Thompson Igou on 16 Jan 1850 in Hamilton County, Tennessee. Sophronia (daughter of Gen. Samuel Igou and Mary Ann Skillern) was born in in Dallas, Hamilton County, Tennessee; died in in Chattanooga, Hamilton County, Tennessee. [Group Sheet] [Family Chart]

1. Dr. Samuel Igou Yarnell was born on 30 Dec 1852 in Hamilton County, Tennessee; died on 25 Jun 1930 in Hamilton County, Tennessee.
2. Aaron J. Yarnell was born on 10 Dec 1853 in Hamilton County, Tennessee.
3. J. T. Yarnell was born on 6 Sep 1855 in Tennessee; died on 2 Apr 1937 in Chattanooga, Hamilton County, Tennessee; was buried on 3 Apr 1937 in Chattanooga Memorial Park Cemetery, Chattanooga, Hamilton County, Tennessee.
4. Mary C. Yarnell was born on 1 Mar 1858 in James County, Tennessee; died on 14 Oct 1940 in Chattanooga, Hamilton County, Tennessee; was buried on 15 Oct 1940 in Chattanooga Memorial Park Cemetery, Chattanooga, Hamilton County, Tennessee.