Thanks for the reply. A poster said that some early Dublin parish records survived. My ancestor is Thomas James Leslie of 5 Capel Street, Merchant's Quay who died after 1837. It is believed he lived in St Audeon's Parish and there maybe surviving records. His son, James Thomas Leslie is my ancestor who was sent to Australia (Tasmania) as a Remittance Man in 1830 due to political activities. If anyone can shed any more light on these people, I would be grateful. Thanks