He was found on tax rolls of Orange Co., NC in 1779. Name listed as GWINN. No documentation has been found to show that he was father of Elizabeth, but William Harper's application for Revolutionary War pension, claimed service from Orange Co. This seems to substantiate that William and Elizabeth were married in Orange Co., NC, prior to moving to SC. More work is needed on this line. In the "History of the Gwin Family" by Jesse Blaine Gwin, 1961, on page 17, there is a statement about the Will of Mordecai Gwinn, probated in 1785, and lists his children (as shown in these records), including a daughter, Elizabeth. A copy of the will may provide her married name. This would then be the proof to tie down the loose ends. John Gwin, most likely the son of Mordecai, married Sarah Harper, 26 Feb 1782, in Rowan Co., NC. This indicates that the Harper and Gwin families were near each other in 1782. Records of Rowan Co. may shed more light on the connection.