text: Yep that was me. I used to run across this area (seemingly an old municipal dumping ground, now a large area of rough grass) and knew it as Trumpers Field but as there is little/nothing in the way of signage on the ground I may well have been confused. I agree that the proper location of Trumpers Field would seem to be the north but I have never heard the name "Earl of Jersey's Field" at all so I'm not so sure about that.