 The next landing was by a Mr Johns of HMS "Porcupine" whilst the ship was on a mission, (between June and August 1862), to make a survey of the sea bed prior to the laying of a transatlantic telegraph cable.Johns managed to gain foothold on the island, but failed to reach the summit.On 18 September 1955, Rockall was annexed by the British Crown when Lieutenant-Commander Desmond Scott RN, Sergeant Brian Peel RM, Corporal AA Fraser RM, and James Fisher (a civilian naturalist and former Royal Marine), were winched onto the island by a Royal Navy helicopter from (coincidentally named after the man who first charted the island).