The war diary shows no entry dated 22 December 1914. The tribute from the Stornoway Gazette, linked to below, has no further information either.
Sergeant JOHN MACDONALD
Last address in Lewis: 13 New Shawbost,
Son of Murdo and Peggy Macdonald, of 12, New Shawbost, Stornoway.
Service unit: 1st Cameron Highlanders
Service number: 4765
Date of death: 22 December 1914 at the age of 40
Killed in action at La Bassee
Memorial: Le Touret Memorial, Panel 41 and 42
Local memorial: West Side, Bragar
View tribute here