Cornelius Gallagher

Cornelius Gallagher (Condy was the son of a Cornelius Gallagher and mum Mary Mcnelis born about 1840 in Donegal Ireland near Ardara. His wife was Bridget Carr. his son John was my grandfather. My father's daddy. The children I have found they have so far I will post of; there may be more I don't know. I am looking for Cornelius's and Bridget Carr's marriage I have no idea if they were in the states or in Ireland. at any point in their time. they may have went back from the states or could be here rip. it's making me nuts not being able to figure them out. I do not have definite parents or birth for Bridget Carr either. I believe he mom may have been O'Donnell.