The brigade was raised in 1908 upon the creation of the Territorial Force as the 2nd West Riding Brigade, part of the West Riding Division. The brigades' composition was of the 4th, 5th, 6th and 7th Volunteer battalions of the Duke of Wellington's.
The division was mobilised in early August 1914 when the Great War began and, when asked, most of the men volunteered for Imperial Service. In May 1915 the division was numbered as the 49th Division and the brigade became 147th West Riding Brigade. The battalions were also redesignated, adopting the '1/' prefix to distinguish them from the 2nd Line battalions being formed at the same time in 186th Brigade, part of 62nd Division. Most of these 2nd Line units consisted of the few men who did not originally wish to serve overseas, or were not eligible, and the battalions were to act as a reserve for the 1st Line units when they were sent overseas. However, following the Military Service Act 1916, most of these did end up being sent overseas. The brigade served with the division mainly in the Great War in the trenches of the Western Front. During the war the brigade was awarded a Victoria Cross belonging to PrivateArthur Poulter of the 1/4th Battalion.
Both the brigade and division were disbanded shortly after the end of the war, as was the rest of the Territorial Force. However, both were reformed in the Territorial Army, which was formed on a similar basis as the Territorial Force and the brigade, now the 147th Infantry Brigade, again with all four battalions of the Duke of Wellington's Regiment were also reconstituted. In the late 1930s, however, the United Kingdom strengthened its air defences by converting many infantry battalions of the Territorial Army into anti-aircraft and searchlight battalions. As a result, in 1936, the 5th Battalion, Duke of Wellington's Regiment was transferred to the Royal Engineers and converted into the 43rd Anti-Aircraft Battalion, Royal Engineers. It was assigned to the 31st Anti-Aircraft Group, 2nd Anti-Aircraft Division alongside other infantry battalions that had been converted into the anti-aircraft or searchlight role. In 1938 the 4th Battalion was transferred to the Royal Artillery and converted into the 58th Anti-Tank Regiment, Royal Artillery and served as the anti-tank regiment for the 49th Division. In the same year, the brigade received the 5th Battalion, West Yorkshire Regiment from the 146th Infantry Brigade of the division. The brigade was later redesignated the 147th Infantry Brigade