I have established that Israel was Andrew's brother, but now I have questions about Martha, Israel's wife.I'm still seeking info about Mary Gibson? Clark. I am curious about an alternative to her being descended from Gideon Gibson, neighbor of John Clark, which has been speculated but not confirmed. I can't find a Mary in Gideon's family that fits. Martha Nisbit Pickens moved from her long-time home on Cub Creek to South Carolina after husband Israel was killed. Why would she unless to be near a relative, possibly Mary? who was married to John. When Mary died, she married John. (My time frame may be in error.) Was he an in-law? She named hers and John's son Gibson Clark. Why would she have named him for the surname of the spouse before her unless there is a family link? I see other Nisbit descendants who also have the first name of Gibson. Also, Andrew Pickens, brother of Israel, and the Clarks were known to each other. If we can establish her parents/siblings, we might have a different lineage and reason for Gibson Clark's name. If you can shed any light, please contact me.