I have. His mother was American therefore he is natural born.
What's irrelevant is your point about Jackson because he was qualified to be president under the US Constitution regardless what nationality his mother or father had at the time of his birth. Andrew Jackson was a US Citizen at the time of the adoption of the Constitution and resided in the United States for 14 years.
Your points in your argument are specious at best. Having two parents as US citizens and being born in the United States is without question a natural born citizen. All other types of citizens, statutory or native born, are not NBC.
Show us the proof she was American. You have bought into Obama hype and that is not proof.
FYI, the birthers actually have a point on this. You know what they say about broken clocks.
If Obie Jr. really really was born outside the US (I know he wasn't, but let's pretend for a minute), he would not be a US citizen at birth because his mother did not meet the residency requirements to convey automatic US citizenship on her son. The 1952 immigration and nationality act required the US citizen parent to have lived in the US for at least 5 years following her 16th birthday. Being only 19 years old, she did not meet that requirement.
But of course, this is all moot since he was born in Hawaii.
Some birthers use the above to establish a motive for her to have fraudulantly registered his birth in Hawaii. That argument fails because her status as a US citizen would entitle her to naturalize her son as soon as she returned to the USA. Now why would she risk a felony fraud conviction when she could obtain citizenship for her son through perfectly legal means?