Through DNA I am related to a Daniel Clifford born 1798 in Cork Ireland. He married Margaret Sheehan -- do not know the exact date of marriage. My gg-grandfather is Denis Clifford born around 1808 in Ireland. Married Catherine Bennett in 1834 in Newmarket Parish. I want to find out Denis and Daniel's parents to know if they are brothers. It seems marriage records do not include parents. We both have a lot of Jeremiah's, Timothy's, Patricks and Johannahs in both families. Could you advise me where else to look. I know these are common names and it makes it more difficult.