Source: 18th Battalion Nominal Roll, April 1915.
Family Search: Horace Sidney Mabb was born on 13 October 1885, in Dunton Green, Kent, England as the son of James Mabbs and Ann Elizabeth. He married Lizzie Willetts on 18 August 1917, in Stratford, Perth, Ontario, Canada. They were the parents of at least 1 son and 1 daughter. He lived in Perth, Ontario, Canada in 1911 and Mitchell, West Perth, Perth, Ontario, Canada in 1921. He registered for military service in 1914. In 1914, at the age of 29, his occupation is listed as labourer. He died on 30 September 1963, in London Township, Middlesex, Ontario, Canada, at the age of 77, and was buried in Knox Presbyterian Cemetery, Mitchell, West Perth, Perth, Ontario, Canada.