Alexander Hamilton was probably the only foreign born American citizen at the time of the adoption of the Constitution that the founders intended to be eligible to be president:
“No person except a natural born Citizen, or a Citizen of the United States, at the time of the Adoption of this Constitution, shall be eligible to the Office of President; neither shall any Person be eligible to that Office who shall not have attained to the Age of thirty-five Years, and been fourteen Years a Resident within the United States.”
Martin Van Buren was the first president actually to have been born an American citizen. All prior presidents to Van Buren were born in British colonies!
Martin Van Buren was my g-g-g-g grandfather’s brother.
Re-read it again. It says "at the time of the adoption of the Constitution." The Founders wisely exempted themselves because obviously there was no U.S. at the time of their births.