Birth cert for Mary Connor gives place of marriage as 1859 Castle Blaney, Co Monaghan,
Castle Blaney is a town close to Cornamucklagh,
I had another look at Patricks birth cert, there is a word before Co Monaghan but i can't quite make it out, i might post it in the Hand Writing board later.
I think we're very close to a conclusion on this search.
John.
I posted the entry for the place of marriage on Patricks birth cert on the handwriting board,
I think there was a misspelling of Clontibret on the cert, Cornamuckla is a townland in the parish of Clontibret, so Daniel Gallagher and Ellen Conner were near neighbours when they married, maybe not the same townland? but definitely the same parish.