Hello pgb62uk
Welcome to Rootschat!
I'm currently doing look-ups at the London Metropolitan Archives (see my post at the top of the London & Middx boards) and also at the Westminster City Archives but not as regularly as the LMA. I'm hoping to get there sometime in September but I need a days worth of look-ups before I go to make it worth my while.
I'll add you to my list and let you know what I find.
As the marriage is pre-1837, all that I'm likely to find is the bride and grooms names, marital status, and their parish at the time of their marriage, the date, their signatures or marks and the signatures or marks of their witnesses. You won't get ages, unless a minor, their occupations or the fathers names unless they acted as a witness.
Dawn