The first scenario you posted is the correct one. Moses Templeton Faries was a grandson son of Robert and Hannah through their son Moses and wife Mary. Robert and Hannah were first cousins. Robert's father was Alexander Faries; Hannah's father was Moses. The two brothers resided in Delaware. I don't have my information handy at the moment, and can't give you precise dates and place names, but if memory serves correct the children of Alexander and Moses began moving to York District SC in the 1760's.
I descend from Robert Miller Faries, the brother of Moses Templeton.