The Founders liked the Anglo Saxon period in England between the Romans and the Normans. There is a word from this era..Gecynde. Gecynde means Kind and Natural.
If you want to understand the meaning of natural, native and Kind and how it relates to natural born citizen this is a start.
So as I understand it I'm a natural born citizen. Obama is a native born citizen (due to the nature of his Mother's citizenship) with dual citizenship because of his purported Father's citizenship.
Am I getting this right so far in your book?
(the lyrics "I'm your native son..." keep going through my mind)