Hi!! I'm in Cheltenham too! And as far as I know we are the only ones! never seen anyone from Gloucester either - though surely there must be someone else locally...
I'm in Charlton Kings - where are you?
As for book groups, there are a few but they seem to be full. I recently enquired about one that meets at Moran's on the Bath Road. There used to be one based at the Red Cross bookshop on the bath Road too, not sure if it's still there. The Friends of the Literature festival also have a couple of groups, but obviously you have to join the Friends. I have, but don't go to the Book Groups as I would prefer the afternoon one rather than the evening one and it's full. I have my own small book group which is just for me and some close friends - but if you started anything I would love to join you.