John Paul Jones. In 1778 John Paul Jones of the American Navy raided the port of Whitehaven. He spiked the guns of the 'Half Moon Battery'. This cannon (known as 'Long Tom') was one of these guns. To commemorate this occasion and the recovery of the gun in 1963 near Tom Hurd's Rock by 124 Recovery Company R.E.M.E. and B Company 4th Battalion Border Regiment T.A. This plaque was presented to Copeland Borough Council by Central Volunteer Headquarters T.A.V.R R.A.M.E..