Have you had a look at a copy of the original marriage register entry. Just occasionally there is a comment in a register that explains a little more and gives a clue to apparently odd behaviour. Always worth a look.

Looking at the NBI I see Ann buried 19 August 1809
Moses 7 Nov 1830 age 64 and Hannah 18 June 1843 age 70 all at Padworth. There may be a gravestone with all 3 on to confirm your story. Certainly the burial register should confirm if Ann is the wife of Moses.