Maybe. It depends upon which source you want to believe. You've zeroed in on the ones you prefer. I'll give you my definitive answer when I am seated on the U.S. Supreme Court and am called upon to decide such a case. I was hoping to be elected Pope so that I could excommunicate Joe Biden and shoot pigeons in St. Peters Square.
But since you want to remain on point, and the original point was about Barack Obama's citizenship, we're back to discussion on his birthplace which he himself has stated was Kenya. If that is ever proven despite desperate and costly attempts to obfuscate or show otherwise, then the citizenship of his Kenyan father would dictate that he is, and remains, a Kenyan citizen as governed by the British Nationality act of 1948 which Doug referenced above.
