Here's another good one to ponder from the 1903 Cyclopedia of Law & Procedure. It regards passports issued by the US State Dept and is under the section on ‘Evidence of Citizenship’:
2. Passports. A passport granted by the secretary of state of the United States, reciting that a certain individual is a citizen, is not admissible to prove such citizenship.
So much for that argument that a US passport automatically concludes one to be a US citizen.
But the problem is that you are pulling tidbits from all over and trying to match it all up. Thats not how things work. You have to kinda know what you are looking for or you will just end up running around in circles.
Here’s a good place to start:
http://en.wikipedia.org/wiki/Birthright_citizenship_in_the_United_States_of_America
parsy