In researching York & Chester Wylie families, I have run across some info. on other lines. In the 1850 Census for York Co, Rosanna Wiley,43, is listed with children: Lorenna(?)17F, Iverton L. 14 M, Margaret E. 13F, Sylvanus B. 11M, James W. 8M & William P. 4M. I wonder if they were the family of James Wiley, b 13 Dec 1810, s/o John Wiley & Nancy Aiken? John was s/o Joseph Wiley & Mary Moore. I'm not sure where I got part of this info. but just thought it may give you some clues.