Source: 18th Battalion Nominal Roll, April 1915.
Family Search: When Private Sidney Oliver Gray was born on 11 May 1896, in East Knoyle, Wiltshire, England, United Kingdom, his father, William Grey, was 27 and his mother, Elizabeth Ann Cowley, was 31. He married Violet Kathleen Jay in 1918, in Langport, Somerset, England, United Kingdom. They were the parents of at least 2 sons and 1 daughter. He immigrated to Ontario, Canada, in 1913 and lived in Mere, Wiltshire, England, United Kingdom, for about 10 years and Long Ashton, Somerset, England, United Kingdom, in 1939. He registered for military service in 1914. In 1914, at the age of 18, his occupation was listed as farmer. He died on 27 June 1975, in Clevedon, Somerset, England, United Kingdom, at the age of 79.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 