Hi Gail
Thank you for your query. Can you share what sources you have used to research your family up to this point? Including this information makes it easier for our volunteers to advise and assist you. ..Generally more information was given at the port of arrival rather than the port of departure. If you knew which city they arrived at (e.g. Liverpool, New York, etc.), this could be a good place to find more information. -And perhaps even find out an exact place of origin.
Ellis Island: http://www.ellisisland.org/search/passSearch.asp
Castlegarden: http://www.castlegarden.org/
US National Archives/Immigration info: http://www.archives.gov/research/immigration/
http://www.collectionscanada.gc.ca/index-e.html
Emigration ships to Canada often left from the UK:
http://www.nationalarchives.gov.uk/records/looking-for-person/passenger…
Hopefully you will find an exact place of origin from which you can search church records. You can view what Roman Catholic records exist for various parishes through the link below:
http://www.irishtimes.com/ancestor/ (Browse Roman Catholic Parish Map)
For Church of Ireland records see: http://ireland.anglican.org/about/42 and http://www.nationalarchives.ie/. The Anglican Record Project is has created an index to their records: http://ireland.anglican.org/cmsfiles/pdf/AboutUs/library/AngRecord/bunclodyunionindex.pdf
Here are some other websites that may be of help to you:
http://www.nationalarchives.ie/genealogy1/genealogy-records/introduction/
http://www.nli.ie/en/family-history-introduction.aspx
http://ifhf.rootsireland.ie/?gclid=CKLT_Pa4wrUCFYUf4Qod4EoAGg
All the best in your research Gail. Please do not hesitate to contact us again.
Kind regards,
Genealogy Support