One of my acquaintances is a Swedish National. He did one of those 23-and-me tests and found out he has a fraction of Native American blood. Apparently the Vikings stayed for a little while.
Some descendant of Boltar ad his Indian wife? Yes I read the Prince Valiant comic strip in my youth.
Valiant chases a Viking villain to the New World, fights him over the Great Falls we today call Niagara. Boltar took home an Indian wife while on that trip.
Does he have high cheekbones?
All those home tests are scams to get you to turn in a sample. Go to whichever video site you use these days and watch the videos of people that have done them more than once and the videos of identical twins. Then start to look into the who and why.