Thus, its easily possible Corwin relied on these authorities rather than Vattel directly."
The creation of the presidency, 1775-1789; a study in constitutional history by Charles Coleman Thach
http://www.archive.org/stream/creationofpresid00thac#page/n311/mode/2up/search/natural
Basically states that the requirement for a "Natural Born Citizen" most likely came from Jay's suggestion to Washington.
"ARTICLE II
EXECUTIVE DEPARTMENT
NATURE AND SCOPE OF PRESIDENTIAL POWER
Creation of the Presidency"
“the law of nations was believed by the framers to be a legitimate part of the common law and self executing in the sense that it was unnecssary for congress to pass further legislation”
very legalize..cannot understand..cites vattel several times..
Nations are regarded as individual free persons living in a state of nature.
For they consist of a multitude of men united into a state. Therefore since states are regarded as individual free persons living in a state of nature, nations also must be regarded in
relation to each other as individual free persons living in a state of nature.