According to the map, "Ethnic Groups of Eastern North America, 1750," the group most likely to settle in the backcountry of Pennsylvania were the

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The Scots-Irish were most likely to settle in the backcountry of Pennsylvania during the 1750s. They were known for moving into frontier areas, seeking land and opportunities away from the coastal regions where English and other ethnic groups had established themselves.

According to the Map, "Ethnic Groups of Eastern North America