I know this is an old message but I would like to respond to it. John Abernathy did marry Susannah. BUT there is no proof that she was or was not a HARWELL. You have way too many children attributed to John and Susannah.
John's will was made in Old Tyron Co NC, written 18 April 1816 and probated July 1816. He took great pains to name all his children and even included their position of birth within the family.
The children of John and Susannah were: Jeremiah, first son William Harley 2nd son Berry (NOT BERRYMORE) 3rd son Lawrence H "Lott" 4th son Clayton D 5th son Larkin 6th son
the following were NOT known children of John and Susannah Abernathy of Old Tyron/Lincoln Co NC: Eleanor, Moses, David, James S, Mahala, Eli, Susannah,John H, and Lawson.
The dates of birth and death for almost all of John and Susannah's children are either known or can be inferred by their birth order stated in the will. Martha: 24 Jan 1776-14 June 1846 (tombstone) spouse: John Thompson Amy 3 Aug 1777-19 Mar 1847 (tombstone) spouse: John Oliver Jeremiah: 2 Aug 1780-12 Oct 1866 (tombstone) spouse:Berniece Harris William Harley: 1781/2-1854 spouse: Sally Rockett Berry: 6 Nov 1783-6 Nov 1870 (tombstone) spouse: Almirah Cobb Lawrence H "Lott": 22 Apr 1788-14 Nov 1845 spouse: Margaret Little Clayton D. c1789/90/91-unknown spouse: Angerona Cobb Larkin 1792-after 1850 (census) spouse: Jane Little Fannie c1795-unk. spouse: Alexander Little Polly 14 March 1798-30 Dec 1869 spouse:Ransom Little