Scott: If your budget is limited, you might first try finding the civil record of your grgrandfather's birth in the General Registry Office (groireland.ie). That would give you the parish and townland, as well as the religion. Also, the Griffith's Index shows only three Stevens in Co. Monaghan, Including one in Muckno parish, where there were also two Thomas Donnellys, perhaps father and grandfather of your grgrandfather. You might see if the parish records have been filmed. Diane