Hi
Thank you for your message.
You can check for information about the frequency of the name in the mid-19th century and any other variant spellings of the name here: http://www.irishtimes.com/ancestor/surname/
Some sites that may be of interest to you are:
Irish Newspaper Archives: http://www.irishnewsarchive.com/
Surname searches:
I wish you the best of luck with your research.
Kind regards,
Genealogy support