BTW, as you know...I guess...the natural born language was in article 2. They did not explain it, define it or give congress authority to naturalize.
The 14th gave congress the role of naturalization as they were expecting a heard of immigrants. But they still had not defined natural born and have not.
This was not passed until 1868.
Actually the 14th Amendment was never legally ratified, but that is a separate issue.
See: http://www.constitution.org/14ll/no14th.htm
ML/NJ