There seem to be new researchers on the lists, so I am resending this as the sites given are very useful starting points. Another excellent site with masses of information on research in Ireland and UK is GENUKI. Two sites are useful: Andrew J. Morris Genealogy has a website which includes "Irish Genealogy Answers", an 11 page doc. which gives all kinds of tips including explaining Griffiths. www.genealogy.org/~ajmorris/ For Griffiths website itself, www.ceres.dti.ne.jp/~pyms/griffith.htm which gives details of how to use Griffiths, and includes a link to a look up service, county by county, with e mail addresses of volunteers who will look up names or landholdings, 1848 to 1864. Only the property holder will be listed, but it could give you the reference to someone and the name of the property, which you can use to search a library hard copy to give more details of the holding, details of neighbouring properties etc. Mary G.