A Peterswell Web site says the present church was built in the 1830s (so there was an earlier church), but the Irish Times Web site shows parish records have been filmed only to 1854. The current Peterswell church, St. Thomas the Apostle, apparently shares a priest with another parish. You could try writing the St. Thomas parish office to ask if there are earlier records, but even if there are, unless you have specific dates, it will be hard to get lookups. Diane