I too was confused by "Twerton", as I grew up in the Council estate which was at the other end of Twerton, and that wasn't Twerton as I knew it. My Aunt lived at St Peter's Terrace in the late '50s, so I know now where the pub was
Good detective work, I think that the site has car show rooms on what was Alfred Terrace. Funnily enough there are going to be loads of houses all along the site, like there was 100 years ago.
I remember seeing the Stothert's men coming out of work, cycling in droves........I would wait on the corner by the canteen, for a boy I had a passion for at the time!
Well done and really interesting
Anne