Source: British Home Children Who Died in the First World War.
Family Search: Private John William Platt was born on 3 November 1889, in London, England, United Kingdom. He had at least 1 son. He died on 9 May 1917, in Vimy, Pas-de-Calais, France, at the age of 27, and was buried in Vimy, Pas-de-Calais, France.
British Home Child
Private John William Platt, reg. no 189526, Photo Credit: Operation Picture Me via BHC Who Died in the First World War
History of the 18th Battalion CEF, "The Fighting Eighteenth" 