Source: September 1916 K.I.A.
Family Search: Private Duncan Graham was born on 3 November 1893, in Liverpool, Lancashire, England, United Kingdom as the son of George Graham and Alice. He immigrated to Canada in 1913 and lived in Toxteth Park, Lancashire, England, United Kingdom in 1901. He registered for military service in 1916. In 1916, his occupation is listed as labourer. He died on 15 September 1916, in Courcelette, Somme, Picardie, France, at the age of 22, and was buried in Vimy, Pas-de-Calais, Nord-Pas-de-Calais, France.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 