According to SCOTUS case law, there is no doubt on that class you mention being ‘natural born citizens.’
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This may not be true according to RegulatorCountry:
http://www.freerepublic.com/focus/news/2306351/posts?page=7149#7149
“George Washington was not a natural born citizen, since his eligibility was determined via the so-called grandfather clause. In other words, he was a citizen at the time of ratification of the Constitution, and met the age and length of residency requirements as well, so he was eligible. That both his parents were born in Virginia themselves didn’t have anything to do with his eligibility under the Constitution, at that time. The only thing that mattered was that Washington was a citizen, at least 35 years old, and resident 14 years.”
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Right, because his parents were not US citizens, at the time of George Washington’s birth. They may have been colonial citizens, but not US citizens.
Parents didn’t matter for citizens at the time of adoption of the Constitution, SeattleBruce. That they were citizens at that time, age 35 or older and resident 14 years or longer, is all that the Constitution required, in order to be eligible for the Presidency.
Natural born citizens did not exist until after the Constitution was adopted. And so, there were no natural born citizen Presidents until there were candidates born to two citizen parents, after the country came into existence. Up to that point, every President had been merely citizen, but eligible via the grandfather clause.