Source: May 1917 casualty.
Family Search: When Private Arthur Kelly was born on 17 June 1879, in Oldham, Lancashire, England, United Kingdom, his father, William Kelly, was 38 and his mother, Mary Rigby, was 36. He married Eda Ainsworth on 23 November 1904, in Blenheim, Kent, Ontario, Canada. They were the parents of at least 1 son and 1 daughter. He immigrated to Canada in 1913. He registered for military service in 1916. In 1916, at the age of 37, his occupation is listed as clerk in Blenheim, Kent, Ontario, Canada. He died on 9 May 1917, in Thélus, Pas-de-Calais, Nord-Pas-de-Calais, France, at the age of 37.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 