This is ridiculous. Just how cool would it be to share a name with a Tolkien character?! As a teenager I was kind of envious of a guy who went to our school because his name was something translatable as "Barliman Warg". (Well, maybe it sounds a little funny but it's a Tolkien reference!)
Besides, given Thorin's new portrayal in the films, I'm pretty sure there are tons of ladies out there who wouldn't mind being called Mrs Oakenshield!