I worked with a guy in Alaska who had a Scottish family name. He looked more South American than Scottish, and in fact, I learned later, was Guatemalen born and adopted into an American family of Scottish derivation. My co-worker totally adopted, in his turn, his family's ethnicity. He would practice bagpiping in the stairwells when we worked late. I learned later he went to Scotland to meet others of the lineage and was treated like one of the clan.