1) naturalized, (foreign born)
2) natural, (born in USA, parents maybe or maybe not citizens) and;
3) natural born, (both parents citizens at time of birth, whether naturalized or natural)
If that is not so, there was no reason to differentiate the categories within the Constitution.
There is no wording within the Constitution that differentiates category 2 from category 3.
It is a given that the undefined terms in the Constitution are defined in the English Common Law that was the legal heritage of this nation. Literally thousands of Supreme Court cases over the last 200+ years will back that up.
I should not have used “natural” in number 2, I should have used “citizen.” In number 3 I should have used “natural born citizen.”
Article 1, Section 2 of the Constitution provides that: “No person shall be a representative who shall not have attained to the age of twenty-five years, and been seven years a citizen of the United States, ...”
Article 1, Section 3 provides that: “No person shall be a senator who shall not have attained to the age of thirty years, and been nine years a citizen of the United States, ...”
Article 2, Section 1 reads: “No person except a natural born citizen ..., shall be eligible to the office of the president ...”
That wording differentiates between “citizen” and “natural born citizen.”