The Danes settled in Norfolk/Suffolk; the Norwegians settled the north and west coast of Scotland, and the Islands, and even as far south as Dublin... The West Coast Islands only became part of "Scotland" in 1266...
Any name (as a general rule) that ends in "son" will be of Scandanavian origin, in theory... Harrison (Harry's son), Morrison (Morris' son), Johnson (John's son) and so on...
Stewart (Stiobhard) means a "steward", most commonly "tacksmen" (origins of tax-man) - people that oversee the land, and collect the dues for the Laird...
By modern parlance, and historical fact, I am descended from thugs that worked for a "drugs baron", that operated crack-houses in London and bought the whole Island my family comes from... nothing is new...
"Seek and ye shall find" - just not always what you were looking for...