It snuck out of Massachussett to Vermont as well. The Vermont Constitution of 1777 also used "natural born subject" interchangeably with "natural born citizen:"
SECTION XXXVIII. Every foreigner of good character, who comes to settle in this State, having first taken an oath or affirmation of allegiance to the same, may purchase, or by other just means acquire, hold, and transfer, land or other real estate; and after one years residence, shall be deemed a free denizen thereof, and intitled to all the rights of a natural born subject of this State; except that he shall not be capable of being elected a representative, until after two years residence.
In the period leading up to drafting of the U.S. Constitution, there was no use in English of the term "natural born" where it meant "from like parents." As pointed out earlier on this thread, the first English translation of Vattel using "NBC" (instead of "indigenes") wasn't produced until a decade later. It's not plausible to maintain the Framers used the term "natural born," but intended a meaning not previously used, and that they did this while leaving no record of discussion that a new meaning was being adopted.
"The citizenship of no man could be previous to the declaration of independence, and, as a natural right, belongs to none but those who have been born of citizens since the 4th of July, 1776."....David Ramsay, 1789.
A Dissertation on Manner of Acquiring Character & Privileges of Citizen of U.S.-by David Ramsay-1789
The Law of Nations or the Principles of Natural Law (1758)
The Laws of Nature and of Nature's God: The True Foundation of American Law
Incorrect.
English Editions of the Law of Nations (1760,1787,1793,1797)