Dick and Joanie: I have not yet looked at Roger Cahill's book. I mean to get a copy because I know he has some info on my family in the book. My gr-gr-grandparents were Edward Madden and Anne Carlos from Parish Kilglass, county Roscommon Ireland. Anne had a sister Catherine Carlos who married Thomas Cassidy in Ireland. Thomas had about 500 acres in Freedom Township when he died in 1869. At one time Edward Madden farmed some of the Cassidy land. I believe the family went by both Cassidy and Cassiday. Kathy