Based on the RCB list - historic records for Owenduff parish are available on microfilm in the National Archives, and cover baptisms, marriages and death/burials back to 1752.
The status of records for Kilcormick is a little unclear, I've seen the parish appears with several different spellings, and the RCB list shows both a parish of Kilcormack and parish of Kilcormuck in Ferns diocese - this may be a duplicate listing, or one of these parishes may be another part of the diocese and not in Co. Wexford..
1 - Baptism records for Kilcormack go back to 1877, marriages to 1845 (which would be covered by civil records), and deaths/burials for 1877 (only). Some of the records for this parish were lost in 1922.
2 - Baptism records for Kilcormuck go back to 1788, marriages to 1792 and death/burials to 1803, and appear to be held in local custody.