Are you sure SCOTUS said in the Wong Kim Ark (1898) case that Ark was an Art. II, ยง1, Cl. 5 natural born citizen?
The decision was that because Ark was born on U.S. soil, he was a citizen. Although the opinion didn’t use the words, “natural born citizen” (NBC) it would seem that being a citizen because you were born on U.S. soil would be an NBC.