Records at the National Archives include Church of Ireland parish records, gravestone inscriptions, census returns, probate records, deeds, Tithe Applotment books, rebellion and outrage papers, convict reference files, and other historical and genealogical sources. The National Library is Ireland's main repository of filmed Catholic parish registers. Other records on deposit at the National Library include newspapers, city and regional directories, estate records, the Householders Index, and Griffith's Primary Valuation. The library's staff does not do commissioned searches. A mong other genealogical and historical records, the Manuscripts Department of Trinity College Library has a collection of medieval manuscripts, the 1798 rebellion papers, and some Church of Ireland parish records for Dublin.
Libraries collect mostly published sources, such as books, maps, and microfilm.
Remember the Family History Library may have printed or microfilmed copies of the records you need, so check its holdings before you go abroad. National Archives and Libraries Genealogical Office . The records of the Genealogical Office deal mainly with heraldry. The office's holdings include information extracted from records that were destroyed when the Public Record Office burned. The records of the Genealogical Office are not available to the public.