Have you seen their burial info on Find A Grave? They are both buried at Beech Creek Baptist Church Cemetery in Shelby Co. KY. I have Sarah's parents as William & Mary Jane (McGinnis) Dewitt. Since she was b. Sep 1850 and m. 1869, you only find her in the 1860 census with her parents. The Herndons, Perry's mother's side, was from Shelby Co., guess that's what took them there.