I quite agree, Helen, and I'm only sorry that I can't find anything other than a transcription where this information has been omitted. It's always so much better to consult the original document rather than rely on transcriptions.
I don't know what Northants archives are like, but, as you know the exact date and location of the marriage, they may be kind enough to have a look at the register for a very small fee, or even none at all - you can only ask the question.
