I know all about the discrepancy as to the date of his birth. That is a fact. If he was born at the earlier of the two dates, he would have been born in Canada, and would not have been a United States Citizen, much less a native born one. But you ignore the second fact, if he was born in one of the several States, to an American Mother and a British Father, as he claimed, then there was no dispute that he was a natural born citizen.
You are trying, very dishonestly, to twist a dispute about when and where Arthur was born, into a dispute about whether he was eligible to be President if he was telling the truth. According to Birtherism, if both Arthur and Obama did tell the truth, they still can't be President. Unfortunately for Birtherism, Arthur was President. And there was no dispute that he was a natural born citizen, if he was born in one of the several States, to an American Mother and a British Father.
Oh, and while you are at it, how about the 14th Amendment? How does equal protection allow there to be two types of citizens born in the United States, only one of which is eligible to be President? (He said, scattering the corn before the waiting ducks. Hint. It doesn't. So you gotta go whole hog, and declare Obama an illegal alien.)
Bye.