In response to your e-mail regarding Mary MCCormick and her birthdate of 1759... I have copies of some pages from a book written by Morris Freeman Fergus and John Franklin Fergus - History of the Descendants of FRANCIS FERGUS. In this document, it states that Mary MCCormick was born in Ireland. It states it's source as the "History of Shelby County, Ohio" - Shelby County Historical Society. I hope this helps. Teri Adams Plano, TX