The Grantham rail accident occurred on 19 September 1906. An evening sleeping-car and mail train from London Kings Cross to Edinburgh Waverley hauled by Ivatt 'Atlantic' No 276 derailed, killing 14. The accident occurred in mysterious circumstances; the train ran right through Grantham station, where it was scheduled to stop, and derailed on a sharp junction curve at the end of the platform, which at the time had been set for the passing of a freight train; no definite cause was ever established as to why the train did not stop as scheduled or obey the signals at Caution and Danger.