It's really rather simple and no long winded diatribe is necessary.
If I may ask something of your hypothetical situation...which side of the war did the man fight for?
And if he didn't actually fight which side did he support?
I'm trying to see whether or not you realize that such a situation as you present, especially in the time frame you've presented, has a direct effect on the children due to their parent's, and most notably their father's, allegiance.
Your question is a "set up" for the unwary or uninformed, plain and simple, without further information to make a determination.
William Temple Franklin was born in 1760. His father was a noted loyalist. He did not follow his father’s allegiance.
My question was directed at Diogeneslamp who queried how someone could be an American citizen while never having resided in the US.
But if it makes you feel better, yes, the father supported the Revolution, the son still never resided in the United States.