The father of Philadelphia Hughes was Ellis Hughes (c. 1740-1800).It is important to note that there were two Ellis Hughes in Cape May, both related and both of similar age. The other Ellis Hughes (1745-1817) is DAR patriot Ancestor #: A059120. His parents were Ellis Hughes (1708-1762) and Hannah Whillden, daughter of Joseph Whilldin II, whose will was probated 19 May 1749 and well explains the relationships. Philadelphia’s father Ellis Hughes was the son of Uriah Hughes (1709-1759) and his wife Mary/Mercy Whilldin, (1723-a. 1747) who predeceased her father Joseph Whilldin II.
Your Ellis Hughes married his cousin Mary Whilldin, daughter of James Whilldin and Jane Hand, on 02 October 1761 in Cape May County, NJ.
Online you can download - Rev. Paul Sturtevant Howe, Mayflower Pilgrim Descendants in Cape May County New Jersey,(Cape May, NJ, Albert R. Hand, Publisher, 1921), pp. 27, 97-100, 340-341.