Kearsley Family Genealogy Forum
Well, marrying cousins happened back then, as churches were very close groupings of families, and they probably also lived near each other. I do not have any other info yet, and this may not even be a valid link.
In the Gen. register of McComb Family, page 306, it says "A modern modest memorial to our McComb ancestor and to Dr. Jonathan Kearsley and his wife, Jane, has recently been placed near the old monuments." This may indicate that the memorial is to other McCombs, not that Jane was a McComb.