it is very difficult to find information for ireland as a lot of the records were destroyed, what i do know is Bridgette was born in Bilston in 1854, her parents names were james and Margeret maiden name Oliver. John was born in Mayo in 1841 his fathers name was brien. your Grandfather John P was my Grandfathers Brother his name was Ferdinand. I have visited the cemetery where a lot of the family are buried also the catholic chapel where bridgette and john married on 17th February 1873. I have a copy of there marriage certificate if you would like a copy let me know. On the certificate when he signs it he only puts an x as his mark because he could not write, at the time of his marriage he puts his address as oxford street Bilston so i presume he was lodging with Bridgette's parents at the time.