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Irish Research

  • Ireland took censuses every 10 years from 1821-1911. However, few records survive before 1901.
    • A fire in the Dublin Public Records Office in 1922 destroyed many of these records.
    • 1901 and 1911 census are available here.
    • For pre-1800 families, indexes and originals of census substitutes are available here.
  • Civil Records
    • In 1845, the government mandated that all marriages be recorded. However, in practice, only non-Catholic marriages were recorded until full registration was enacted in 1864.
    • Beginning in 1864 all birth, marriages, and deaths were recorded.
    • Records can be searched through General Register Office of Ireland.
      • An index of Birth records are currently digitized from 1864-1915
      • An index Death records are currently digized from 1891-1965
      • An index of Marriage records are digized from 1882-1940
    • Records for Northern Ireland dated after 1921 can be searched at General Register Office of Northern Ireland
  • Irish surnames can have many variations. Letters were used interchangeably, prefixes were added and removed and nicknames were often listed.
  • Note: Many Irish registers were kept in Latin.
  • Ancestry has a great resource tool, Finding Your Irish Immigrant Ancestors.


  • Ancestry reently released 10 million Irish Catholic parish records here.
  • $ Ancestry Ireland focuses on Ulster.
    • Charges are based on a pay-per view basis.
  • Ask About Ireland
    • You will need to register to access documents, however registration is free.
    • Contains Grifith's Valuation.
  • Belfast Newsletter Index (1737-1800)
  • $ Emerald Ancestors focuses on Northern Ireland and Ulster.
  • Family Search has an agreement with the National Archives of Ireland that allows duplication of certain records.
    • Contains a collection of civil registration indexes covering 1845 to 1958, Ireland Births and Baptisms, 1620-1881 and Ireland Marriages, 1619-1898.
  • $ Find My Past has the largest collection of Irish family history records online.
    • Landed Estate Court Rentals contains a wealth of information about land tenants.
    • The Irish Petty Sessions contians information of misdemeanors and squabbles among neighbors.
    • Poverty Relief Loans, 1821-1874 focuses on Ireland's West Coast counties.
    • Also contains dog licenses registers which records of 6 million individuals.
  • General Register Office of Northern Ireland - GRONI launched an on-line database in 2014 for civil registration records for counties Antrim, Armagh, Down, Londonderry, Fermanagh and Tyrone.
    • Birth records date from 1864 - 100 years ago, marriages from 1864 - 75 years ago and deaths from 1864 to 50 years ago.
    • Registration is free however, you must have at least one credit in your account in order to see search results.
    • Search results only remain in your account for 72 hours.
  • Ireland XO is a reverse genealogy website, the Irish at home researching those who left.
  • Irish Genealogical Research Society
  • Irish Genealogical Society International
  • Irish Genealogy
    • Contains church records of baptisms, marriages and burials.
    • Contains the only official version of Ireland's civil registration indexes of births, marriages and deaths.
  • $ Irish Newspapers contains searchable ditigized newspapers from across Ireland.
  • Irish Times Ancestors has a list of existing records and where to access them.
    • Research Wizard analyses what you already know about an ancestor and produces specific recommendations for further research.
  • Military Archives
  • National Archives of Ireland
  • National Library of Ireland
    • NLI is planning on posting images of its collection of Catholic Parish Register Microfilm.
  • Public Record Office of Northern Ireland
    • Contains records for Antrim, Armagh, Down, Fermanagh, Londonderry and Tyrone.
  • $ Roots Ireland
    • Contains over 20 million transcriptions of records.
    • Before using the search features, read the FAQs. This system has some quirks!
  • The Workhouse is a great website to learn about poor law, work houses and poor law records for UK and Ireland.