The date was 11 Jan. 1902. I can't think that the fact that it was the eleventh has anything to do with this though.
This marriage took place at a Congregational Church. I must admit I am fuzzy about who exactly fills these forms out that we get when we order them, since obviously the Registrar is not present at church weddings. Therefore I'm having trouble figuring out how much of this was the Registrar's actual doing, and how much might reflect some sort of error on the minister's part.
Now that you have had an opportunity to make some comments, I will add another bit. (I didn't want to prejudice anyone before, in their interpretation.) My extra bit is this: There really was a William Leopold, but he was not a member of the bride's immediate family (i.e. not one of her siblings, both parents being deceased). I believe, but have not yet proven conclusively, that William was her uncle. One of the things that makes it difficult to prove is that there is almost no evidence of interaction between them, and no family memory of it as far as I have been able to discover. The bride's father had died only two years previously. I have a hunch that William, his brother, was filling in for him, and probably gave away the bride. I suspect that the minister got confused about the two names. He knew her father was dead, but he also had this William person in front of him who was sort of acting like a father, he probably didn't know the family at all, and just got confused, and then perhaps corrected it himself. Therefore, I think, it was the minister who made the original error. Otherwise, I must think that the name "William" just happened to appear at random, which seems strange; I just can't account for why it might have been selected, as it doesn't sound remotely like August.
I got the cert from the PRO, but I could definitely ask the local registry office, and see what they say. Never thought of that. I also wondered if the church record might be of any use (never having yet seen any, I'm not sure). Also, this marriage was by licence, and I wonder if tracing the licence would prove fruitful. What do you think?
I should add that the item in brackets is very simply written. It does not have tails on it as you would often find in Roman numerals. It's really just two simple parallel strokes, such as in the simple format of Roman numeral 2, or the arabic number eleven).
I appreciate all your comments, and would be interested in any further ones you might have.
thanks.