Source: 18th Battalion Nominal Roll, April 1915.
Find-A-Grave
Discharged in England and last record has him at 15 Roc Lane, Roc Green, London NW9.
Note that the Nominal Roll (1915) spells this man’s name as “Knightley” and the LAC web site spells his name as “Knighty”.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 