Source: SS Caronia Passenger Manifest. 1919.
Family Search: When Private John Clifford Percival was born on 27 January 1897, in Sarnia, Lambton, Ontario, Canada, his father, George Percival, was 35 and his mother, Elizabeth Lane, was 32. He married Elizabeth Agnes Andrew on 13 October 1923, in Windsor, Essex, Ontario, Canada. He immigrated to Vermont, United States in 1923 and lived in Ontario, Canada in 1897 and Lambton, Ontario, Canada for about 10 years. He registered for military service in 1918. In 1918, at the age of 21, his occupation is listed as cooper in Sarnia, Lambton, Ontario, Canada. He died on 20 January 1963, at the age of 65, and was buried in Lakeview Cemetery, Sarnia, Lambton, Ontario, Canada.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 