1916.
https://cdrkerchner.wordpress.com/2013/10/29/is-mr-charles-evans-hughes-a-naturalborn-citizen-within-the-meaning-of-theconstitution-by-beckinridge-long-chicago-legal-news/
Actually even older.
http://natural-borncitizens.com/chesterarthurnotnaturalborn.html
This is not Mitt Romney’s father.