Hi Janis,
Thank you very much for your message.
Unfortunately it will be difficult to find more information Thomas without knowing where he came from. Most Irish record sources- church records, land records, census records- are based on specific locations. Until you know a specific location within Ireland, preferably a parish or placename, it may be difficult to do anything more with these records.
It may be an idea to contact Mallow Heritage Centre for some assistance, however a fee may apply. Here is their email: mallowheritagecentre@gmail.com
Some other websites that you may find useful in the meantime are:
The National Archives of Ireland http://www.nationalarchives.ie/genealogy1/genealogy-records/introduction/
The National Library of Ireland http://www.nli.ie/en/family-history-introduction.aspx
Family Search: www.familysearch.org
Genealogy links: http://www.genealogylinks.net/uk/ireland/cork/index.html
Failte Romhat: www.failteromhat.com
Cork Past and Present: www.corkpastandpresent.ie
All the best,
Genealogy Support
