At least 16 people died and 16 are still missing following the ship's January 13 collision with rocks close to the shore of the Italian island of Giglio.

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From his boat, Ridley wrote a daily blog via a solar-powered satellite phone, describing his near collision with a container ship, battles with 20-foot waves and cravings for gin and tonics.

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But Laurence drowned when he was 43 (a ship bringing him home sank after a collision in the St Lawrence river) and Henry was only six years older when he died of anaemia in 1919.

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Lloyd's List describes that occasion as a "near miss" and says the ship's route would have been less than 200m away from the point of collision on Friday's voyage.

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