I don't see how. A Catholic marriage is different from a civil one, even if they happen simultaneously. A Catholic marriage cannot end in divorce, only in death (or annulment if you're a rich American Catholic) so the information is not incorrect. If the divorced person remarries, the Catholic Church considers them to be committing adultery and may excommunicate them. The Data Protection Act would ensure that the information is available to the concerned parties and that confidential information is treated appropriately; beyond that it has no effect - nor should it have - on the rules of private members' clubs.
I suppose that make sense, so your saying the CCL is almost like a online virtual world, where if two members got married internally but not under civil law, the marriage is just symbolic, not worth the paper it's on. (Catholic-virtual-world)
Am I right then when I say that under the DPA a club/company say xtra-vision can keep information on you for their records forever?