On 29 April 1935 no. 5552, the first of the class, permanently swapped identities with no. 5642 which had been named "Silver Jubilee" on 19 April 1935 in recognition of the Silver Jubilee of King George V on 6 May of that year. This change gave the name to the rest of the class, see LMS Jubilee Class 5552 Silver Jubilee. Earlier on (from summer 1934), they had been known as the "Red Staniers" (because of the crimson livery), to distinguish them from the "Black Staniers" (the LMS Stanier Black Five class).