[philman_36]

From Feudalism to Consent : Rethinking Birthright Citizenship March 30, 2006
Drawing on an impressive array of legal scholars, from Vattel to Blackstone, Justice Fuller correctly noted that there was a distinction between the two sorts of allegiance-"the one, natural and perpet­ual; the other, local and temporary."[20]
That means you have to seek out Fuller's dissent.
Before the Revolution, the view of the publicists had been thus put by Vattel:
The natives, or natural-born citizens, are those born in the country of parents who are citizens. As the society cannot exist and perpetuate itself otherwise than by the children of the citizens, those children naturally follow the condition of their fathers, and succeed to all their rights.

Vattel was being discussed, only under the aspects of anchor babies, not presidential eligibility, even though it applies to that issue as well.

Do you want some more? I can keep digging.

[philman_36]

It's easy enough to see how the discussion of one subject (anchor babies) would eventually migrate to the other (presidential eligibility).
You grok that?