The Scots-Irish DNA Project now has 761 participating families. Below is a roster of the participating families. As you can see the families are a combination of Lowland and Highland Scottish surnames with a few native Irish surnames. All these families self identify as being Scots-Irish. Most of these families participated in the 18th Century Ulster Migration to English Colonies and early Republic, or in the 19th Century Ulster migration into Canada.
The majority of the Lowland Scottish families are from Ayrshire, Lanarkshire, and Gallowayshire, and most of these families migrated to Ireland during the Ulster Plantation (1609-1720). The Highland Scottish surnames from Argyll, Lennox, and the Southern Hebrides; many of these families migrated to Ulster circa 1550-1600).
The dominate haplogroups are Insular Celts (85%) and there is about 12% of the haplogroups of Norse/Norman ancestry. The native Irish surnames come from certain families that converted to the reformed faith and became part of the Protestant Irish community in the 1600s.
Click on image to enlarge:
