The examples are based on an ancestor called Brennan, a barrister who was a member of the Church of Ireland,
lived in Cavan town in Co. Cavan, was born around 1825, married in Ireland around 1850, and died in Ireland about 1880.
He also emigrated to Boston c. 1870. Stranger things have happened. The summary table below shows an overview of records likely to be relevant in researching him.
Click on one of the links to see the kind of information provided.