'A 13-year-old boy who ran away to join up fought on the front line in the First World War until his mother sent his birth certificate to the War Office and pleaded that he should be sent home. Sidney Lewis, who has been recognised as Britain's youngest soldier to serve in the Great War, enlisted with the East Surrey Regiment in August 1915, five months after his 12th birthday, and was fighting on the Somme by the age of 13. But within weeks he was ordered home to his mother, Fanny Lewis, in Tooting, south London, after she told officials...