Hi,
Thank you for your message.
Have you tried looking in church records for more information?
Presbyterian registers are held in three main locations:
PRONI has microfilm copies of almost all registers in Northern Ireland and also lists of records held by the Presbyterian Historical Society.
You could also check for record of the family in the land acts pertaining to Ireland in the 19th century. There are two:
The Tithe Applotment Books (1823-1838) found at http://titheapplotmentbooks.nationalarchives.ie/search/tab/home.jsp
and Griffith?s Valuation (1848-1864) found at http://www.askaboutireland.ie/griffith-valuation/
Civil registration began in 1864, so you should be able to find any births, deaths, marriages that occurred in Thomas? family in these records. Civil records are available from the General Register?s Office in Dublin. Here is their website:
http://www.groireland.ie/research.htm
You can search the indexes to these records online at:
https://familysearch.org/search/collection/1408347
Have you tried looking in the 1901/1911 census records to see if you can find any information on family still in the area at the time? These are available here:
http://www.census.nationalarchives.ie/search/
Some other websites that you may find useful are:
The National Library of Ireland http://www.nli.ie/en/family-history-introduction.aspx
The National Archives UK ? genealogy search: http://www.nationalarchives.gov.uk/records/looking-for-person/
The Public Records Office of Northern Ireland http://www.proni.gov.uk/index/family_history.htm
Genealogy Links: http://www.genealogylinks.net/uk/ireland/donegal/index.html
Family Search: www.familysearch.org
Alternatively you could try contacting the Donegal Ancestry Centre however a fee may apply. Here is their email: info@donegalancestry.com
Please be patient - as our programme has only begun to rollout across the island of Ireland and volunteers in some areas may not yet be organized.
Kind regards,
Genealogy Support