"In the early hours of Saturday, October 13, 1928, the Leeds to Bristol night mail train crashed under the road bridge at Charfield station, South Gloucestershire. Gas cylinders used to light the carriages blew up, and the fire was so savage that 12 who died were so badly decomposed that their relatives accepted the railway company's offer of a mass grave, which is still prominent in a corner of the village churchyard. And it's on the memorial stone that the mystery lives on, for after listing 10 names and their places of origin, it ends with "Two Unknown". Despite a number of theories the true identity of the bodies is still unknown.
As the 80th anniversary of the tragedy draws near the Western Daily Press launches an appeal to anyone who might be able to finally uncover the mystery that has shrouded the crash for decades."
For full details, see
http://www.thisisbristol.co.uk/news/Mystery-train-crash-children/article-294878-detail/article.html