This is a question for all you railway enthusiasts. I am reading a book about the early days of the building of the railways in Durham, especially around Tow Law. It says that a man with the surname of Bainbridge was the first railway guard to be killed, and possibly the first public railway employee to lose his life while on duty. It would appear that while he was on top of a very early first-class carriage making sure that the luggage, which was stored on top, was secure, he forgot that the train passed under a bridge at Shildon, and the parapet struck his head and killed him. I have no more information but am assuming that the accident could have occurred around the 1890's. I did try to investigate myself and have spotted the following on the Warwick Uni site; "M. Bainbridge - labourer - New Shildon - Killed 1901 - North Eastern Railway Ref: MSS 127/Gr/4/4/2. This looks like a possibility but I can't access the file. The Bainbridge family were heavily involved in railway building.
So, this could be another family member.