"A battalion in the making: 72nd [Battalion] leaving Hastings Park" for route march. There is an officer on horseback leading one of the companies. The men are in service dress tunics, kilts and glengarries carrying Ross rifles at the slope arms position. It appears that the whole battalion is on the march. The 72nd Regiment, Seaforth Highlanders of Canada 72nd Battalion (Seaforth Highlanders of Canada, CEF: Lieut.-Colonel (Brigadier-General) J. A. Clark, company commander and Commanding Officer of 72nd Regiment, in command. This unit fought in France from August, 1916, to end of War as a Battalion of 12th Infantry Brigade, 4th Canadian Division 35 officers and 1,100 Other Ranks. Source: History of the 16th Battalion, CEF, page 365