John Francis Shearman states in the Ossorian genealogical tables within his " Loca Patriciana " that some of these northern concentrations of Fitzpatricks ( Cavan and Leitrim ) are descendants from the main Mac Giolla Ph�draig stock; many fleeing Ossorians being driven into Connacht after the devastating raids by Muirchertach Mac Lochlainn in 1156.
32.
From family bibles, family legend, correspondence, and the historical archives of Dearborn, he traced the family history from England to Ireland, then to America, and in 1832 to the wilderness of the Michigan Territory, much of which was included in his book " The Fords of Dearborn " ( ISBN 978-0-9727843-1-3 ) includes genealogical tables and more than 125 illustrations depicting family members, their farms, homes, and their relationships.