Irwin of Enniskillen County Fermanagh Ireland

Looking for help with Irwin Family from Florence Court, County Fermanagh and Enniskillen County Fermanagh, Ireland.
I have a John Irwin b.abt 1720 at above locations. Had a son John Irwin (2) who was b. abt 1760 at above location. John (2) also had a son named John Irwin(3)