I found a marriage record for your great-grandparents, & I'll list it as is found in Estill Co marriage records:
Morefield, Harison m Rosa Abner, Jan 21, 1909, at Steve Keith's in Estill Co, KY; W P Shuler, Minister, performed the ceremony in the presence of Shelby St John & Steve Keith
Harison - 19, born & residing in Estill Co, KY; 1st marriage, a farmer, his parents were A F & Sarah Morefield, both born in TN
Rosa - 19, born in Powell Co (neighbor to Estill), & residing in Estill Co, KY; 1st marriage; her parents were John Abner & ____ Ballard, both born in Estill Co, KY;
bondsman: Steve Keith; Clerk: C T Grinstead Source: Vol 27, pages 624 & 625
(The name Abner & Abney are one & the same, every time I've seen the name Abner in a deed, will, etc, it was always underlined, with the use of Abney in the same document, & Abney was NOT underlined; I feel it all stems back to a man who was named Abner Abney, 1700's model.
Hope this helps just a little bit...Diana Covey Frymyer Mussaw