None of the dead has yet been formally identified by police as most of the remains are thought to be too badly damaged by fire to be recognisable. Formal identification will rely on forensics methods such as matching dental records and taking DNA samples.
Barton and his daughters, with Emma's boyfriend Christopher Burbull, were travelling along the motorway having attended a funeral earlier in the day. Burbull was among the injured.
Pamela and Anthony Adams, from Newport, Gwent, were also feared to be among the dead. They had visited their daughter, Tonia White, in Taunton and were on their way home.
The carnage on the northbound carriageway and the grounds of the nearby Taunton Rugby Club, where the fireworks display took place, were inspected in detail by crime investigators.
- INDEPENDENT