Lieutenant-Colonel Percy Thuillier Westmorland CMG DSO (25 July 1863 – 4 June 1929) commanded the 10th Battalion, London Regiment, and the 151st (Durham Light Infantry) Brigade during World War I.

[1][2] For his dedication to service during his army career he was three times mentioned in despatches and made CMG and DSO.

[1] Westmorland's maternal grandfather was Sir Henry Thuillier who served as Surveyor General of India.

[1] His brother in law was Brigadier-General Clifton Inglis Stockwell, the British officer who initiated the 1914 Christmas truce football match at Frelinghien with Baron Maximilian von Sinner.

[1] In the Second Boer War, Westmorland served as staff officer at Glencoe and was afterwards in command at St Helena.