That is interesting - so if Emily was married to Joseph Wigglesworth, then Emily has totally disassociated herself by reverting back to her maiden name, then I would say he is probably the likely culprit, as I couldn't see Emily and Joseph parting because of what his brother had done!!!!!
I said if Emily was married to Joseph, because as yet there is only the marriage registration and I hope it is your Emily, but of course you can't be certain.
But what an interesting story, I'm sure it was dreadful for poor Emily though.
Regards,
Kath