I guess what you are seeing is the non conformist "Circuit" aligned to an area rather than a rigorous Conformist Parish (?)

For the record the area of Lydbrook is confusing in that it lies across the East and West Dean ex parocial areas.

Lydbrook - East Dean is Horslea( Hausley or what ever !), Joys Green, The Pludds, Reddings etc

Lydbrook - West Dean is Worral Hill, Hangerberry, Camomile Green etc

I found exactly the same thing when transcribing the Lydney Primitive Methodist Circuit baptisms. I think the simple answer is that they were not postal addresses, merely the minister describing where the parents were living. Quite often the same minister described a place as being (name of place) East Dean, (name of place) West Dean or even (name of place) Clearwell. My geography isn't too hot either!