Looking for Clues to Origins of Cline Family from Ireland

John Cline (c1824-1890)and wife Elizabeth Dealy Cline (1831-1903)came to Elbridge, NY from Ireland about 1852 with children Dennis and Philip Cline. Perhaps came with Elizabeth's parents Dennis Dealy (1795-1871)and Ann. Patrick Cline (1830-?) was apparently John's brother and lived near them with his wife Mary Dalton (1837-1919). All were born in Ireland. We are searching for where in Ireland they came from. We are descended from Dennis.