Sherry, There is a book that has information about the Mounce Byrd line. It's called "BYRDS and SONNERS of SHENANDOAH VALLEY, VIRGINIA And Their Migrations to Wells County, Indiana" by Marilyn K. (Byrd) Harton & Harold K. & Carol J. (McKenzie) Byrd. You can view this book online at http://members.aol.com/kgriffyjr/ByrdsSonners/contents.htm. I hope this helps. I'm looking for the parents of a William Byrd/Bird that was born in Kentucky around 1791. Do you have any information on the William Byrd you mentioned? Good luck on your research. Terry Bird