Actually, Gray misstated what common law said about Natural Born Citizens by saying every child born to aliens in England were Natural Born Subjects. Judge Gray left out the "little fact" that in common law a child born of an alien father who owed another allegiance to another power. Nothing but dicta that did not have any bearing on Wong Kim Ark who decided the case based on the 14th Amendment.
And also in the Ark decision, (Blackstone) child's born to aliens in England are Natural Born Subjects, except when the child [Denizens] is also a subject of another sovereign and who have the almost the same rights of other Natural Born Subjects BUT not to hold high office.
Your comment wrt to the Judge shows just what kind of problem we are dealing with as regards citizenship. It is that kind of imprecision which has allowed millions of anchor babies to become citizens.
There is also a problem with positing two kinds of natural-born subjects.