Source: Per message from Allan Miller at Facebook.
Family Search: Private Joseph Patrick Anderson was born on 17 March 1893, in Dundas, Hamilton, Ontario, Canada as the son of John Anderson and Catherine McGregor. He married Irene Meyer on 28 October 1919, in Guelph, Wellington, Ontario, Canada. They were the parents of at least 1 daughter. He registered for military service in 1916. In 1916, at the age of 23, his occupation is listed as farm hand. guelph prison farm in Guelph, Wellington, Ontario, Canada. He died on 27 September 1939, in London Township, Middlesex, Ontario, Canada, at the age of 46, and was buried in Marymount Roman Catholic Cemetery, Guelph, Wellington, Ontario, Canada.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 