The fact that you have a form from Lydney Parish Council suggests that the burials took place in a municipal cemetery. The parish council mentioned is quite likely a civil parish as opposed to an ecclesiastical one. The fact that a consecrated section is mentioned adds weight to this argument, as generally speaking virtually the whole of a churchyard is consecrated ground (with a few exceptions for the un-baptised and suicides, etc.) whilst in municipal cemeteries it tends to be less. The appropriated local council will hold the registers.