Interesting, where did you find that out from?
Back when I was a kid, one of my uncles was big on our family history. Spent years researching it, and I'm just going off what he said.
Apparently, we used to be Clan <mother's maiden name> (with an "a"). Then the clan got convicted of stealing sheep, so the "a" got removed to disgrace them, and they got deported to either Isle of Man or Isle of Skye (can't remember which).
After a while of that, they said hell with it, and moved to Canada.