Very good. You know, I actually knew that, because *I posted them*. And "somebody" is an Ill. Law Professor. Do you think that's reasonably appropriate, that he has a somewhat valid train of thought described there? Did you read them?
The definition is precise where it appears in a previous form, ie "natural born subject", as I asserted. "Natural Born Citizen" is an obvious transposition with the term "Subject" because the monarchy's colonial subjects just redefined their relationship to the crown and each other. No more "subjects", only "citizens".
Your next assignment is to understand the terms "original intent" and "common usage". There will be a test.
I'm sure his parents are proud, but he doesn't decide what the law is. He has an opinion, like everyone else. I bet if we go take a poll of law professors about what "natural born citizen" means, he'd lose out.
But the question at hand was, where is "natural born citizen" clearly defined? We are talking about a legal definition, not someone's unofficial opinion. An essay doesn't qualify. You need a legal citation. A constitutional provision, statute, court decision, something that has legal weight.