Under U.S. law, a person is a natural born citizen if he or she is born of a parent who was a U.S. citizen at the time of that birth, no matter where the physical birth occurred.
Humor me for a moment. Go to scribd.com. “Citizenship terms” There is an easy to read table, “Citizenship Terms Used in the US Constitution. Terms defined and Legal Reference”.
See if that document agrees with your above statement..Not throwing rocks, just curious..thanks.
http://harvardlawreview.org/2015/03/on-the-meaning-of-natural-born-citizen/
http://www.fas.org/sgp/crs/misc/R42097.pdf