Geographical information
The geographical details included for each parish include the county, barony, diocese, poor law union and probate registry, as well as the main places in the parish, such as towns and villages.
The name of the barony will be helpful when using grand jury records and the Registry of Deeds. A parish will always be found entirely within one diocese. Knowing the name of the diocese will be useful in identifying, among other things, the correct diocesan will index.
When the Poor Law was introduced to Ireland in 1838 the island was divided into a network of poor law unions, each of which had a workhouse, and were administered by Boards of Guardians. Probate registries, dealing with testamentary matters, came into being in 1858.
A number of parishes crossed county boundaries and on the southern fringes of Ulster a few parishes extended beyond the province of Ulster into the province of Leinster. In these instances, the records concentrate on resources specific to the portion of the parish within Ulster.