 For example, on 12–15 February 1915 "Mount Temple" carried 15th Battalion of the 48th Highlanders from Bristol to St Nazaire.Some time during her war service she was equipped with a 3-inch naval gun on her stern for defensive purposes.In August 1915 it was announced that Allan Line Steamships and Canadian Pacific Railway had merged forming a new company named Canadian Pacific Ocean Services, Ltd. As a result, "Mount Temple" was released by the British Admiralty back to her commercial service in October 1915.