 For his service in the war, Lowther received the Queen's South Africa Medal, was appointed a Companion of the Distinguished Service Order (DSO), and was noted for future staff employment.After the war had ended, Lowther was back as a regular officer in the 1st battalion of his regiment in September 1902, but three months later was appointed a Brigade Major, Foot Guards brigade in the 1st Army Corps on 3 December 1902.In October 1913, on the eve of World War I, he commanded 1st Battalion Scots Guards until being wounded in November 1914.