Died at his (underground) post in France in 1916.

 St Peter and St Paul, Scaldwell, Northamptonshire
(Click on an image for a larger version)
I assume the loose stones in the graveyard were to be used in some repair project?
At the bottom of the stone there are the details of Charles Robert Walker who was one of the brave men who dug tunnels under the enemy trenches in the 1914-1918 war.
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