Hi there,
I would be a direct descendant of the McMasters of Killyless. 1901 and 1911 census's show several family's who i believe were full cousins / 2nd cousins. McMasters stores i believe was owned by Malcom McMaster and then his son Malcom etc. His family were connected to 2nd Ahoghill (trinity) Presbyterian church. Grave / headstone records can be found online.
Most of the other family's in the killyless Macmaster family circle were connected to Craigs parish church (church of Ireland). Again baptism, marriage and burial records can be downloaded from the internet.
At the moment I'm trying to connect together from about 1820 until the 1901 census and how all the Mcmasters of that era are connected.
Best regards
Colin Mc.