24th October 1947: 32 killed in South Croydon train crash
A train from Haywards Health to London Bridge was standing at a stop signal just outside the station when another London Bridge bound train from Tattenham Corner and Caterham crashed into the back of it.
Services were being delayed by the dense fog, so the carriages were packed full with passengers.
This, and the fact that the Tattenham Corner train was travelling at speed before the collision, meant that 32 people were killed and a further 183 injured.
It was found that a mistake by a signaller, who had lost track of both electric trains in the dense fog, had allowed them onto the same stretch of track.