sentences:  He was ordained as a minister in the Church of Scotland in 1915 at the age of 31.He served with the Royal Army Chaplains' Department in the First World War on the Western Front from late 1915 to the end of the conflict, where on arrival he was attached to the British Expeditionary Force's General Headquarters, and was the Commander-in-Chief Field Marshal Sir Douglas Haig's favoured chaplain.At the end of the war he was appointed an officer of the Order of the British Empire in the 1919 New Year Honours.