Mary was born in 1816 in NC.That makes it extremely likely that her parents were living in NC in 1816 - not in Clay Co KY.I think the father of Mary was the "James Pase" who appeared on the 1815 Ashe Co NC tax list in Captain Williams District.
"James Pase" on the 1815 Ashe Co NC tax list is next to Vinson Williams.
"James Pace" on the 1820 Lawrence Co NC census is next to Vinson Williams.
I conclude, from this and the other evidence, that James Pace and Vinson Williams both moved from Ashe Co NC to Lawrence Co Indiana between 1815 and 1820.
My interpretation.You may have information which disproves it.