On 31 March 1916, the remaining Mounted Brigades were ordered to be numbered in a single sequence and the brigade became 19th Mounted Brigade, still in Lincolnshire under Northern Command.
On 31 March 1916, the remaining Mounted Brigades were numbered in a single sequence. As a consequence, the 2/1st Scottish Horse Mounted Brigade was redesignated as 19th Mounted Brigade, still in Lincolnshire under Northern Command.