Twelve years separate these signatures:
https://www.ancestry.co.uk/imageview...64?pId=1005504
John Joseph Hanham was born in Morden, Dorset, found a niche in the fledgling railway industry as a coachmaker, took Sarah Bryant with him up to Preston in Lancashire and they had several children together before they married in 1850.
Susan Moors and Sarah Bryant were first cousins, but after their father and mother respectively died, their parents attempted to marry and, when this was forbidden, shacked up together anyway.
But was the witness to Susan Moors' wedding John Joseph Hanham? The signatures don't look very similar to me.