In my review of the 1862 Griffiths Valuation for Fermanagh, I note the following DUFFY listing: Callagheen Townland, Property 6, Denis DUFFY, Patrick Dundas, House, Office, Land, 26 acres Callagheen Townland, Property 2 & 3, Denis McBrien... Interesting similarity in spelling Denis. Probably the ennumerator's spelling. Also wonder if the naming of Denis DUFFY was influence by several earlier generations of Denis McBRIENs at Callagheen and Ardees. It is not clear if Denis Duffy was a part owner of the property or was a farm servant. Denis McBRIEN of Callagheen was my Great Grandfather. There were NO DUFFEY listings in Fermanagh on the Griffiths Valuation CD! Here is a partial 1862 Griffiths Valuation of DUFFYs in Fermanagh (A-James): Index to Griffith's Valuation of Ireland, 1848-1864 Duffy, Alice County : Fermanagh Parish : Devenish Location : Aghamuldowney Duffy, Bartley County : Fermanagh Parish : Devenish Location : Tullysranadeega Duffy, Bridget County : Fermanagh Parish : Boho Location : Agho Comment : Murty Duffy, Bridget County : Fermanagh Parish : Boho Location : Agho Comment : Owen Duffy, Catherine County : Fermanagh Parish : Aghalurcher Location : Drumgoon Duffy, Charles County : Fermanagh Parish : Cleenish Location : Skea Duffy, Charles County : Fermanagh Parish : Killesher Location : Aghnahoo Duffy, Cornelius County : Fermanagh Parish : Drummully Location : Clonnaroo Duffy, Denis County : Fermanagh Parish : Devenish Location : Scribbagh Duffy, Denis County : Fermanagh Parish : Inishmacsaint Location : Callagheen Duffy, Denis County : Fermanagh Parish : Inishmacsaint Location : Drumataffan Duffy, Francis County : Fermanagh Parish : Devenish Location : Drumcorban Duffy, Francis County : Fermanagh Parish : Galloon Location : Askill Duffy, Francis County : Fermanagh Parish : Inishmacsaint Location : Corrakeel Duffy, Francis County : Fermanagh Parish : Inishmacsaint Location : Drumbadreevagh Duffy, Hiram County : Fermanagh Parish : Derryvullan Location : Burfits Hill Duffy, Hiram County : Fermanagh Parish : Derryvullan Location : T/Irvinestown/Main St. Duffy, Hugh County : Fermanagh Parish : Clones Location : Mullaghbrady Duffy, Hugh County : Fermanagh Parish : Clones Location : Mullanahinch Duffy, Hyram County : Fermanagh Parish : Drumkeeran Location : Drumierna Duffy, James County : Fermanagh Parish : Devenish Location : Tower Beg Duffy, James County : Fermanagh Parish : Devenish Location : Tullykelter Duffy, James County : Fermanagh Parish : Inishmacsaint Location : Conagher Duffy, James County : Fermanagh Parish : Inishmacsaint Location : Drumreask Duffy, James County : Fermanagh Parish : Inishmacsaint Location : Garvros Duffy, James County : Fermanagh Parish : Inishmacsaint Location : Glennasheevar Duffy, James County : Fermanagh Parish : Inishmacsaint Location : Killy More Duffy, James County : Fermanagh Parish : Inishmacsaint Location : Lergan Duffy, James County : Fermanagh Parish : Inishmacsaint Location : Rossdagamph or St. Catheri Bill Barber