I was referring to the “other” American president I mentioned farther up.
My apologies that I can’t remember which one this was. Certainly nobody seemed concerned about it at the time.
In Arthur’s case, an opponent first claimed he was born in Ireland. When that was disproven, he switched it to claiming he was born in Canada. I’m unaware of anybody at the time being particularly concerned about his father’s citizenship status at the time of his birth.
Of course, Arthus was running for vice-president, not president.