The following excerpt is from an article posted April 29, 2015 at silconrepulbic.com
The entire collection of Catholic parish register microfilms held by the National Library of Ireland – 400,000 films amounting to the most important source of Irish family history – is to be made available online this July.
The National Library of Ireland (NLI) has been working to digitise the microfilms for more than three years under its most ambitious digitisation programme to date.
Announced in December, the archive of parish register microfilms will go live on 8 July.
The parish register records are considered the single most important source of information on Irish family history prior to the 1901 Census. Dating from the 1740s to the 1880s, they cover 1,091 parishes throughout the island of Ireland, and consist primarily of baptismal and marriage records.