Brennan S of Donegal Gweedore

My father knew very little about his family history, after researching for almost 10 years I discovered that we are very closely related to Leo Brennan's family (Leo's Tavern) Gweedore Donegal.
I would appreciate making contact with any other researchers from this family who may be able to help me further.
Particular interest sn with Thomas Brennan and family who went to the US.
Regards Jackie
jackie005@btclick.com