Ordinarily, there was likely to have been a Coroner's Inquest to obtain the verdict 'accidentally killed on the turnpike road'. Despite my best attempts using 19th Century terminology, I've not found any mention of the incident in the West Country press currently available via the British Library Newspaper Archive. However, the timing of the incident clashed with a 'kerfuffle' in Wiltshire concerning Coroner's fees and expenses withheld by the Justices for certain inquests they considered unnecessary, so coroners elsewhere would have been under pressure to justify an inquest if there was already sufficient evidence to prove accidental death.
If I were you, NC, I'd be inclined to obtain a copy of that death certificate, not only to confirm the cause of death but also the identity of the informant. I've encountered a few accident reports where a local was believed to have been run over by one of the many night coaches after imbibing too well at a village inn. Injuries received in a pugilist encounter sometimes resulted in an 'accidental' death verdict, as well as the more common fall from a horse or under the wheels of a cart, which could attract a 'deodand' - a sort of fine on the object that caused the death of one of Her Majesty's subjects.
