Thanks everyone for your replies and hard work. My catherine would have been about 18 at the time so I dont think that can be her, but it may be her mother. I only know these were their listed addresses at the time of their marriage in 1862, so it was a bit of a shot in the dark. It is interesting that all of the occupants of no. 24 have names of german origin, as that is where anton was born.
Thanks again, Toby.