The info I have found shows Thomas South's parents as William South (1780 - 1849) and Margaret Donan (1783 - 1865).
I am descended of Thomas South and Catherine Patterson.
I have Sarah Jane Ford's parents as Simeon Ford (1803 - 1871) and Sarah Sally Moore (1806 - 1838).
I am also descended from Simeon and Sarah. Small world.
I found a lot of information/ original documents regarding these families on:http://www.hccoky.org/eSearch/User/Login.aspx?bSesExp=True
That being the Hardin County, Kentucky clerks office page. The Fords and the Souths were some of the first families in Kentucky.