Source: Blog comment offering correction of name re. photo.
Family Search: When Private Addison Clifton Newton Nelles was born on 11 June 1899, in Glanford, Wentworth, Ontario, Canada, his father, Isaac Newton Nelles, was 28 and his mother, Lillie Rosemond Bradt, was 27. He married Thelma Etoile Haley on 3 February 1917, in London, Canada West, British North America. He lived in Middlesex, Ontario, Canada in 1911. He registered for military service in 1916. In 1931, at the age of 32, his occupation is listed as chauffeur. He died on 23 May 1979, in London, Ontario, Canada, at the age of 79, and was buried in Forest Lawn Memorial Gardens, London, Ontario, Canada.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 