Source: SS Caronia Passenger Manifest. 1919.
Find-A-Grave
Family Search: Private Thomas Butler was born on 29 November 1897, in Hastings, Sussex, England, United Kingdom as the son of Thomas Butler. He immigrated to Toronto, York, Ontario, Canada in 1913 and lived in Toronto, York, Ontario, Canada for about 7 years. He registered for military service in 1915. In 1915, at the age of 18, his occupation is listed as packer in Toronto, York, Ontario, Canada.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 