1/1st

August 1914 : in Liverpool. Part of the Welsh Border Mounted Brigade.

October 1915 : Regiment split up: RHQ and B Squadron joined 31st Division : after moving to France it was briefly attached to the 2nd Indian Cavalry Division in late April / early May 1916; C Squadron joined 35th Division; D Squadron joined 30th Division : after moving to France it was briefly attached to the 2nd Indian Cavalry Division in late April 1916.

May 1916 : all units reformed in France, to form VIII Corps Cavalry.

July 1917 : the Regiment was dismounted and sent for infantry training.

24 September 1917: the men joined a battalion of the King's, which was redesignated 18th (Lancashire Hussars Yeomanry) Bn, the King's (Liverpool) Regiment.

14 May 1918 : after suffering heavy casualties, the battalion was reduced to a training cadre; it was reconsituted by 13 August 1918.

2/1st

Formed September 1914, and remained in UK until May 1918, when moved to Ireland. Converted into a cyclist unit in July 1916.

3/1st

Formed in 1915. Remained in United Kingdom until absorbed by the 2nd Reserve Cavalry Regiment in Ireland in early 1917.