http://www.dennisahogan.com/newsletter/blog/irish-genealogy-newsletter-boundary-changes In Ireland, the boundaries of counties and civil parishes have been relatively stable. However, boundaries were somewhat invisible to the Irish. So they may live in one county and go to church or “do business” in a convenient market town in the next county. Church records and even civil records may not be recorded in a family’s home county if they lived near a boundary. Irish Catholic parish and church boundaries have not been stable since the early 1800s. As Catholics were allowed to worship publically, many more churches were needed. Several sources indicate Catholic boundaries, but they usually represent just a one-time snapshot which may not be relevant to the timeframe that you are researching. An Irish Catholic Directory may help. These directories list dioceses, parishes, churches, and priests including historic & current parish names. Published annually since 1835, several past directories can be found by searching "Irish Catholic Directory" on Google Books <http://books.google.com/>. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus