Hi Marine
Clonallan parish in the 19th century encompassed the churches in Mayobridge, Burren and St Peter's in Warrenpoint. The baptismal and marriage records were amalgamated and kept at St Peter's but that didn't necessarily mean that your Butterfields were baptised in St Peter's. It was more than likely that they were baptised in St Patrick's Church which was erected in 1806 in Mayobridge, which was then replaced by the present day church in 1862. Unfortunately the records for Clonallan parish didn't start until November 1826 even though the churches in Burren and Mayobridge were built long before that, so it will not be possible to get the marriage of Henry Butterfield and Elizabeth McGlade, if they married in Clonallan parish. They may even had more children born before 1826 but are not in the records. Bavan townland is on the road between Mayobridge and Newry and it may be possible that Elizabeth was from Newry parish (McGlade was not a common name in Clonallan) and you might be able to find their marriage in Newry parish (their records started in 1818 - although the early years are very patchy). The bride usually married in her parish.
Hope this is of some help.
Regards
Deirdre
