History of the 4th Mounted Division
The division was formed on 20 March 1916 by bringing together three existing mounted brigades of the “second line” of the Territorial Force, and adding the newly-formed 2/1st Southern Mounted Brigade. It was headquartered at Colchester and remained as part of the home defence force.
Early in July 1916 the yeomanry regiments were dismounted and converted into cyclist regiments, and later in the month the 4th Mounted Division became the 2nd Cyclist Division.
Order of Battle
13th (2/1st Eastern) Mounted Brigade
2/1st Suffolk Yeomanry
2/1st Norfolk Yeomanry
2/1st Essex Yeomanry
13th Mounted Brigade Signal Troop (Royal Engineers)
13th Mounted Brigade Field Ambulance (Royal Army Medical Corps)
13th Mounted Brigade Train (Army Service Corps)
14th (2/1st South Eastern) Mounted Brigade
2/1st Royal East Kent Yeomanry
2/1st West Kent Yeomanry
2/1st Sussex Yeomanry
14th Mounted Brigade Signal Troop (Royal Engineers)
14th Mounted Brigade Field Ambulance (Royal Army Medical Corps)
14th Mounted Brigade Train (Army Service Corps)
15th (2/1st South Western) Mounted Brigade
2/1st Wiltshire Yeomanry
2/1st North Somerset Yeomanry
2/1st Hampshire Yeomanry
15th Mounted Brigade Signal Troop (Royal Engineers)
15th Mounted Brigade Field Ambulance (Royal Army Medical Corps)
15th Mounted Brigade Train (Army Service Corps)
16th (2/1st Southern) Mounted Brigade
2/1st Dorset Yeomanry
2/1st Hertfordshire Yeomanry
2/1st Surrey Yeomanry
16th Mounted Brigade Signal Troop (Royal Engineers)
16th Mounted Brigade Field Ambulance (Royal Army Medical Corps)
16th Mounted Brigade Train (Army Service Corps)
Divisional troops
4th Mounted Divisional Signal Squadron (Royal Engineers)
4th Mounted Divisional Train (Army Service Corps)
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