I have used the Clare Heritage Centre to find my McNamaras. I would suggest that unless you have some good solid dates and a more specific area that you save your money until you do. McNamara is the 2nd most popular name in Ireland. It costs more than the amount listed in the website and they automatically billed me the extra money without consulting me. I had specific information on an uncle with all the ages of his children and the town that they were from - the info I got back was extremely helpful. However the info on the niece - my direct niece and her husband left more questions and they made alot of assumptions that I question. Alot of the records in Ireland were destroyed by the English.