There seems to be some confusion in those posts with various names etc.
It might be good to state what info you have which is certain rather than speculative.
For example, is your John the man who married Margaret Boyle as Patrick Flatley?
If so, does his father's name match that of Bridget's on her marriage to Edward Walford?
You also mention your great aunt Mary Flatley who married Austin Jordan. What is her father's name on the marriage certificate?
She has Ballyhaunis as her birthplace.