The double wedding was going to be my next question

I have Caroline born Dudley in the 51,61 and 71, with an birth year 1821-1823 - is that the right one?
I see her in 1881 with the later year of birth now.
If it is then Dudley fits with the Caterine Petford of 1841.
Sorry- it's not much help with your query except for agreeing that you probably have the right Caroline.
regards
heywood