Tracing my family history

Iam trying to trace my great great great grandfather's family tree. He was born in 1798 in Limerick, Ireland. His occupation was a yeoman. He came to Ludlow, Northumberland, New Brunswick in 1821as stated in an immigration document, Canadaand married Lydia Woods Price Jun 26, 1823 and died in 1880 in Ludlow. I am looking for his history in Ireland.