You may wish to read Professor of Law Polly Price's article, "Natural Law and Birthright Citizenship in Calvin's Case (1608)"
Oh but the Founders didn't go with any English thoughts about English birthright citizenship statutes or Calvin Case or English Common law as to their intent behind the natural born citizen clause written in the US Constitution as they were believers of the Law of Nations written by Vattel.
James Madison wrote these notes seen below in 1830 about the Constitutional Convention of 1787. You'll notice in the red rectangular box, the number "3. Letters & writings constitutional"
What's the first phrase you see after the "Letters & writings constitutional" there Foggy?
Yes, we all see it's the "Law of Nations"
We also see nothing, no, nada, zip, zero, nor hide nor hair of any English Common law written, and of course nothing there about "Natural Law and Birthright Citizenship in Calvin's Case (1608)." There is no connection whatsoever of Calvin Case, but again we all do see the major driving force behind the US Constitution which was the Law of Nations.
"Mr. DICKENSON mentioned to the House that on examining Blackstone's Commentaries, he found that the terms, "ex post facto" related to criminal cases only; that they would not consequently restrain the States from retrospective laws in civil cases, and that some further provision for this purpose would be requisite."
James Madison, August 29, 1789, "Notes on the Debates in the Federal Convention"
"James R. Stoner, Jr. has identified four ways in which common law influenced the U.S. Constitution. Consistent with some of the discussions at the Convention examined above, he first observes that the common law provided some of the language of the document. He specifically cites the provisions related to habeas corpus, ex post facto laws, the provision that an individual be “natural born,” and the term “good behavior” (2003, 17). He believes that, unless otherwise stated, the presumption was that such words would continue to maintain their existing meaning." from “The Constitutional Convention of 1787: A Comprehensive Encyclopedia of American Founding”, 2005, Dr. John Vile
Dr. James R. Stoner Jr. is a Constitutional Law Professor at Louisiana State University. And he is associated with Glenn Beck University.