Hi there, and welcome to Rootschat.
You have posted in the commonroom, and I expect the best place for this post would be the Ireland Board. A moderator will move it to there hopefully.
In the meantime, have you looked up the Irish censuses? Both the 1901 and 1911 are online.
You haven't put dates that you are interested in, so hard to give you much more.
If you look here:
www.irish-roots.ie they have many many parish records (baptisms, marriages and burials) Not too cheap though at €5.00 per record! But if you can narrow down dates and names, you could find what you are looking for.
http://www.census.nationalarchives.ie/search/ is the link you will need for the censuses. Good Luck!