Although my surname is English, I am primarily of Scots-Irish descent (McGills, McKinnons, Lindseys, Swearingens, Kinkaids and Johnsons).
I participated in the family surname (Sheffield) DNA project and much to our surprise, our supposedly Anglo-Saxon forbears were actually Viking settlers in Northern England.
I’ve discovered the same thing, each search takes us back to the “Gunn” clan, sometimes among others.
A clan that settled in the north along the coast with viking backgrounds.
“Gunnr” means war.
Do you get the sudden urge to pillage and loot when you walk into a store, or smack someone with a broad-sword when they mumble things about their messiah the zero?
England's been overrun so many times by so many different groups, there's bound to be a mixed bag when you tot up the DNA.
Same thing happened in Scotland, with the Picts, several different waves from Ireland, the French strain from the Lowlands (big habit of intermarriage with France among the greater families), and of course the Vikings in the North and the Isles.
It's neat that you were able to nail it down through the DNA project.