Hi Connie, The "Par Dumbos"appears to me to be an abbreviation of "Parish of Dumbo???" Have you made any attempt to look up the Townland or Civil Parishes of Coleraine. A helpful site I have used is: http://www.Leitrim-roscommon.com/index.shtml Scroll down to IreAtlas Townland Database, you may find the civil parish listed under one of the Coleraine townlands,cheers Leo.