Merah Smith 109, believed to be one of London oldest residents. See SWNS story SWNNold; A great great grandmother, who has just celebrated her 109th birthday carried on going to the gym to do kick boxing until she was 103 and only stopped on doctor’s orders. Merah Smith, who was born in 1912, the same year the Titanic sunk, celebrated her birthday at her flat in South London surrounded by friends and family. The God-fearing centenarian is believed to be the oldest woman in London. Despite her age, the former nurse, who is originally from Jamaica and goes by the name of Louise, exercised at her local gym every week until she turned 103.