This concerns Irish Marriage Registers
I am indexing an 1862 Irish Marriage Register and ran into something new that I hadn't seen with other records. Where the name of the groom is listed, it listed, "Catherine, Neal McLaughlin." Obviously, the given name of the person is Neal, and not Catherine Neal. I saw more instances in the same batch where there was this same anomaly. Another example, "Mary, Patrick Doherty." Most of the records just list a groom's name, without an additional name and comma before it.
I'd like a response from an Irish records expert and not someone's else's guess. What is this? What was the registrar trying to communicate when he added this extra first name that certainly doesn't belong to the groom? This is just for my information in researching records.