I am not aware of any evidence of the parents of Ann Leonard (ca. 1672-1747), the wife of James Cox (1672-1750) of Monmouth County, New Jersey.
The profile calls her Ann Leonard and makes her the daughter of James Leonard (1643-1726) and Lydia Gulliver (ca. 1648-1705), both of whom were located in Taunton, Massachusetts. There is nothing in the profile that explains why they would have a daughter in New Jersey.
The only sources that I see cited anywhere are ancestry.com profiles that cite one another and a findagrave.com link.
Am I missing something or is one of those unsourced things that has gained a life of its own?