72nd Regiment, Seaforth Highlanders of Canada Pipe Major John Gillies and Bandmaster Henry Slatter in the tent lines at Sidney Camp, 1912. Gillies is dressed in service dress tunic, kilt, kilt apron and glengarry. Slater is dressed in a blue patrol tunic and trews. Gilles had previous served in the Scots Guards while Slatter had served in the Grenadier Guards of the British Army.