or certificates. The IreAtlas Townland Database offers searches by townland, county barony, parish or poor law union. This long established site is still a great place to locate Irish place names. Irish Ancestors Placename Search of 65,000+ entries from 1851 General Alphabetical Index to the Townlands and Towns, Parishes and Baronies of Ireland. Free searches include a list of the placenames in the civil parish, adjoining parishes list, most common surnames 1855 list and a summary of sources for the parish. A fee is required to access the source details plus other site features. Ordnance Survey Ireland, National Mapping Agency. The historic map archive offers online access to the Ordnance Survey maps of Ireland, surveyed between 1829 and 1842. These maps have been acclaimed for their accuracy and are highly regarded by cartographers. Maps can be searched and viewed online but cannot be downloaded or printed. There is an option to purchase maps online with A4 historic maps delivered electronically as PDF files and larger maps posted. $ Currently there is free access to the following series of maps. Use this link for access http://maps.osi.ie/publicviewer ? 6 inch mapping series (1:10,560) colour 1837-1842 ? 6 inch mapping series (1:10,560) greyscale 1837-1842 ? 25 inch mapping series (1:2,500) greyscale 1888-1913 These maps can be viewed along with a variety of contemporary maps. This site also has an online PDF version of Samuel Lewis Topographical Dictionary of Ireland. The Irish Manuscripts Commission has digitised many of their out of print publications and