TQ5977 : Very large grave in St Clement’s Church, West Thurrock

This is alongside the west wall of St Clement’s Church, next to the mass grave of sixteen cadets and an officer drowned on 30th August 1915 – see https://www.geograph.org.uk/photo/6570988 It is of the lozenge variety, more common in Kent, but it is huge and the largest I have ever seen.