Inscriptions on gravestones are an important, often unique source for genealogists. This series makes available genealogical information from graveyards, wills, newspapers, and other sources in Ulster. Since 1966, 21 volumes covering much of County Down, 3 volumes for County Antrim, and 4 volumes for Belfast have been published. Some volumes are still available in print, while those that are out-of-print are available on microfiche.