Hi John,
I'm New to this forum and have stumbled on your post here. I'm aware it's a long time posted.
Patrick Kavanagh was my Great Grandfather he lived at 30 North Great Clarence Street and his father was Richard Thomas Kavanagh from Wexford, his Mother was Ellen Mullen, his brother was Christopher.
He married and moved to 2 Buckingham Place and reared his family there, my grandmother being one of them, they then moved on to Dunne Street after he passed in 1927.
I have details on their weddings and deaths etc...
Feel free to private message me.
Regards.