Hoping for any help. My gggrandfather, William Meagher b.abt 1800 married Ellen(Eleanor) Sweeney b.abt 1811. Oldest son James S. b.abt 1827 and Thomas b.abt 1828. Emigrated to Canada abt 1830 settlling in Lonsdale, Hastings County, Ontario. May have left with other family members, or others may have followed being as there were quite a few Meaghers in the area in the preceding years. A Father Michael Mackey born in Templemore abt. 1813 was suposedly related to Meaghers, Sweeneys, etc. Everything that I have found out so far points to them being from Roscrea.