Dead from British naval ship that fought in second opium war commemorated in a Hong Kong cemetery

• Happy Valley memorial honours those who died on board the HMS Calcutta, brought out of mothballs for the second opium war, in four years of Far Eastern service
• Built in Bombay of Burma teak, the vessel, flagship of Admiral Sir Michael Seymour, after whom Seymour Road in city’s Mid-Levels is named, carried a crew of 720