How odd is this surname?

my last name is Shadwick, not Chadwick and always people ask me is that Chadwick and I have to correct them, I know that the name starts in England somewhere as Chadwick but somewhere over the few hundred years my family has been in the Americas the lettering was modified slightly, Also for a while my surname was... show more my last name is Shadwick, not Chadwick and always people ask me is that Chadwick and I have to correct them, I know that the name starts in England somewhere as Chadwick but somewhere over the few hundred years my family has been in the Americas the lettering was modified slightly, Also for a while my surname was Shadwick-Purse because my parents hadn't gotten married yet, really I wasn't even aware of the change until I was looking at the backs of old photos from my infancy and saw the double surname. Are they really that odd?
Update: grangliest? what does that mean?
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