A name-by-name transcription of the Griffith Valuation for Erris Barony in County Mayo is available online here. Roughly one third of all McAndrew listings in the Griffith Valuation of Ireland can be found in this transcription. The transcription includes the name of the individual along with the townland in which they owned or rented land. This is crucial information for Irish genealogy in that the individual's location must be known at the townland level before one can know which church registers to access for baptism, marriage, and burial records.
A detailed map of the area of the Barony of Erris is available here. The map can be of immense value in locating specific townlands in Kilcommon and Kilmore civil parishes.
