A very simple breakdown of Natural Born citizen.
http://www.youtube.com/watch?v=GqH7rSHcvgU
The British Nationality Act 1948
Section II
Citizenship of the United Kingdom and Colonies.
Citizenship by birth or descent.
5.—(1) Subject to the provisions of this section, a person born after the commencement of this Act shall be a citizen of the United Kingdom and Colonies by descent if his father is a citizen of the United Kingdom and Colonies at the time of the birth:
http://www.uniset.ca/naty/BNA1948.htm
Agree this guy,”Bigone5555J’s”, videos are very good. It appears that he has done a lot of research.