I don't doubt it at all. All I said was that his name didn't sound very Indian. And since they have European last names, they wouldn't be Indian last names, right?
http://en.wikipedia.org/wiki/List_of_Swedish_surnames
Here's the deal. The Sioux never had last names, Europeans do. Everyone on the reservation has a European last name or an adopted one made up of English words like Means, Pelletier, Robideaux or something like Whirlwind Soldier, Goodshield, Afraid of His Horse, Crow Dog . Last names amongst the Sioux are a product of European influence.