Hello CBoyd.
Let me know if you find out anything more about your Boyd ancestor. My g-g-grandmother was Agnes Boyd, daughter of James Boyd (Annahilt). It was also there that she married , in 1858, Samuel Ferguson (son of Alexander Ferguson).
All I know of James Boyd was that he was a weaver (as per the marriage certificate). The mother of one or the other of my g-g-grandparents may have had the surname Black.
Agnes was born around 1839 (19 at the time of marriage).
Good luck in your searches.