Thank you so much for all your help, and Yes, that marriage to Wilton Curwen is one in my line.
I'm having difficulty getting hold of the marriage entry for John and Ann Parry, I've contacted Manchester Records Office about their 1827 marriage details but the chap couldn't seem to find them the first time, I've since given them the actual date but with no luck, I think maybe he's not allowed to spend time helping in this way as they'd be inundated with requests otherwise.
Do you know how to get the volume and page numbers etc that I would need to actually order a 'copy'?
Thanks again and best wishes.