It would be good to change Silbaby to Weedon.. but the welsh connection could be a possibility... given my somewhat obscure theory that Wansdyke is the boundary of the last British/welsh land, not the modern Bristol Channel, names could still be intact. Walcot in Bath is Cottage/s of the Britons, Maes Knoll is Welsh, the resurgence of the natives through the "dark ages" could mean that old boundaries were re-established...