The Long, Long Trail
 
 
This was promulgated in Army Council Instruction 381 published on 3 April 1917. As in the other arms, ACI 380 also dealt with changes in the arrangements for TF records, pay and other administrative matters. These arrangements were to take effect from 1 Apr 1917.

It also set out the affiliation of Yeomanry units serving overseas to particular Reserve Cavalry Regiments, which were to act as reinforcing and rejoining units for them and it stated that soldiers serving in the Mounted Brigade Signal Troops were to be renumbered in the block assigned to the Yeomanry Regiment from which the troop was originally drawn. Under the Corps Warrant, Yeomanry units belonged to either the Cavalry Corps of Dragoons, Lancers or Hussars (as did regular cavalry units).

By the time this ACI was published a number of Yeomanry units had converted to infantry. ACI 381 emphasised that Yeomanry renumbering did not 'apply to personnel of the Yeomanry who have ceased to be Yeomen in consequence of their unit to which they belonged having been organised on an infantry basis, 3rd line Yeomen who have been transferred to Reserve Infantry Battalions, nor those transferred to Reserve Cavalry Regiments'.

TF soldiers retained their new number as long as they served in a unit of the same cavalry corps, even if posted to a regular unit of that corps. If they were transferred to another Cavalry Corps, they were transferred to a Yeomanry unit of that corps, renumbered in that unit's allocation, then could (if necessary) be posted to a regular unit of that corps.

Those soldiers treated as regulars for renumbering retained their existing number as long as they served in the same Cavalry Corps, even if subsequently posted to a TF unit of that Corps or to another regular unit of that corps. If they were transferred to another Cavalry Corps they received a regular number in their new corps, even if posted to a TF unit.

From date of renumbering the only men who could join Yeomanry units and be dealt with as TF were

  • Men directly enlisted who do not come under the provisions of the MSA
  • Men serving on TF attestations who are transferred from other arms of the TF
  • Men directly posted to Yeomanry units from Army Reserve Class B as their first unit.

The overall allocation of numbers was -

  Regulars TF
Lancers Below 30001 Above 30000
Dragoons Below 70001 Above 70000
Hussars Below 200001 Above 200000

The detailed allocation of numbers to Yeomanry units, together with affiliations to Reserve Cavalry Regiments and other details, are shown in the table below.

 
Allocation of numbers to units
From To Regiment   Remarks
35001 40000 Lanarkshire Yeomanry Lanark Corps of Lancers.1st line formed part of 12th RSF - Jan 17.
40001 45000 City of London Yeomanry London (City) Corps of Lancers.1st Res Cav Regt. (Includes men from London Mounted Brigade Signal Troop)
45001 50000 Surrey Yeomanry Surrey Corps of Lancers.1st Res Cav Regt
50001 55000 East Riding Yeomanry East Riding Corps of Lancers.1st Res Cav Regt
55001 60000 Lincolnshire Yeomanry Lincoln Corps of Lancers.1st Res Cav Regt
70001 75000 Berkshire Yeomanry Berks Corps of Dragoons. 6th Res Cav Regt. (Includes men from 2nd South Midland Mounted Brigade Signal Troop)
75001 80000 Derbyshire Yeomanry Derby Corps of Dragoons. 4th Res Cav Regt. (Includes men from Notts & Derby Mounted Brigade Signal Troop)
80001 85000 Essex Yeomanry Essex Corps of Dragoons. 4th Res Cav Regt
85001 90000 Fife & Forfar Yeomanry Fife Corps of Dragoons.1st line formed 14th Black Watch - Dec 16
90001 95000 Glamorgan Yeomanry Glamorgan Corps of Dragoons.1st line formed part of 24th Welsh Regt - Feb 17. (Includes men from South Wales Mounted Brigade Signal Troop)
95001 100000 QO Royal Glasgow Yeomanry Glasgow (City) Corps of Dragoons. 4th Res Cav Regt
100001 105000 Hampshire Yeomanry Southampton Corps of Dragoons. 4th Res Cav Regt. (Includes men from 1st South Western Mounted Brigade Signal Troop)
105001 110000 Herts Yeomanry Hertford Corps of Dragoons. 6th Res Cav Regt
110001 115000 Duke of Lancs Own Yeomanry East Lancs Corps of Dragoons. 6th Res Cav Regt
115001 120000 County of London Yeomanry London (County) Corps of Dragoons. 4th Res Cav Regt
120001 125000 Lothian & Borders Horse Edinburgh (City) Corps of Dragoons. 4th Res Cav Regt (Includes men from Lowland Mounted Brigade Signal Troop)
125001 135000 Lovat's Scouts Inverness Corps of Dragoons.1st line formed 10th Camerons - Sep 16. (Includes men from Highland Mounted Brigade Signal Troop)
135001 140000 Montgomeryshire Yeomanry Montgomery Corps of Dragoons.1st line formed part of 25th RWF - Mar 17.
140001 145000 Norfolk Yeomanry Norfolk Corps of Dragoons.1st line formed 12th Norfolks - Feb 17. (Includes men from Eastern Mounted Brigade Signal Troop)
145001 150000 Northamptonshire Yeomanry Northampton Corps of Dragoons. 6th Res Cav Regt
150001 160000 Scottish Horse Perth Corps of Dragoons. 1/1 and 1/2 Scottish Horse formed 13th Black Watch - Oct 16. 1/3 formed 26 Sqn MGC and sent one coy to 10th Camerons - Oct 16.
160001 165001 Shropshire Yeomanry Shropshire Corps of Dragoons.1st line formed part of 10th KSLI - Mar 17.
165001 170000 North Somerset Yeomanry Somerset Corps of Dragoons. 6th Res Cav Regt
170001 175001 Sussex Yeomanry Sussex Corps of Dragoons. First line formed 16th Sussex - Jan 17. (Includes men from South Eastern Mounted Brigade Signal Troop)
175001 200000 Yorkshire Dragoons West Riding Corps of Dragoons. 6th Res Cav Regt
200001 205000 Ayrshire Yeomanry Ayr Corps of Hussars.1st line formed part of 12th RSF - Jan 17.
205001 210000 Buckinghamshire Yeomanry Buckingham Corps of Hussars. 3rd Res Cav Regt
210001 215000 Cheshire Yeomanry Chester Corps of Hussars.1st line formed part of 10th KSLI - Mar 17.
215001 220000 Denbighshire Hussars Denbigh Corps of Hussars. 1st line formed 24th RWF - Feb 17. (Includes men from Welsh Border Mounted Brigade Signal Troop).
220001 225000 Royal 1st Devon Yeomanry Devon Corps of Hussars.1st line formed part of 16 th Devons - Jan 17. (Includes men from 2nd South Western Mounted Brigade Signal Troop)
225001 230000 Royal North Devon Yeomanry Devon Corps of Hussars.1st line formed part of 16 Devons - Jan 17.
230001 235000 Dorset Yeomanry Dorset Corps of Hussars. 2nd Res Cav Regt.
235001 240000 Gloucestershire Yeomanry Gloucester Corps of Hussars. 5 th Res Cav Regt
240001 245000 East Kent Yeomanry Kent Corps of Hussars.1st line formed part of 10 th Buffs - Feb 17.
245001 250000 Lancashire Hussars West Lancs Corps of Hussars. 2nd Res Cav Regt.
250001 255000 West Kent Yeomanry Kent Corps of Hussars.1st line formed part of 10 th Buffs - Feb 17.
255001 260000 Leicester Yeomanry Leicester Corps of Hussars. 3rd Res Cav Regt
260001 265000 County of London Yeomanry London (County) Corps of Hussars.
265001 270000 County of London Yeomanry London (County) Corps of Hussars. 2nd Res Cav Regt.
270001 275000 Northumberland Yeomanry Northumberland Corps of Hussars. 5 th Res Cav Regt
275001 280000 Nottinghamshire Yeomanry Nottingham Corps of Hussars. 3rd Res Cav Regt
280001 285000 South Notts Hussars Nottingham Corps of Hussars. 2nd Res Cav Regt.
285001 290000 Oxford Yeomanry Oxford Corps of Hussars. 2nd Res Cav Regt.
290001 295000 Pembroke Yeomanry Pembroke Corps of Hussars.1st line formed part of 24 th Welsh Regt - Feb 17.
295001 300000 West Somerset Yeomanry Somerset Corps of Hussars. First line formed 12 th Somerset LI - Jan 17.
300001 305000 Staffordshire Yeomanry Stafford Corps of Hussars. 3rd Res Cav Regt. (Includes men from North Midland Mounted Brigade Signal Troop)
305001 310000 Suffolk Yeomanry Suffolk Corps of Hussars.1st line formed 15 th Suffolks - Jan 17.
310001 315000 Warwickshire Yeomanry Warks Corps of Hussars. 5 th Res Cav Regt. (Includes men from 1st South Midland Mounted Brigade Signal Troop)
315001 320000 Westmoreland & Cumberland Yeo Cumberland Corps of Hussars. 2nd Res Cav Regt.
320001 325000 Wiltshire Yeomanry Wilts Corps of Hussars. 3rd Res Cav Regt
325001 330000 Worcestershire Hussars Worcs Corps of Hussars. 5 th Res Cav Regt
330001 335000 Yorkshire Hussars West Riding Corps of Hussars. 5 th Res Cav Regt. (Includes men from Yorkshire Mounted Brigade Signal Troop)
    Welsh Horse   Not allocated new numbers - had effectively ceased to exist by this time.1st line formed part of 25 th RWF - Mar 17, 2nd line absorbed by 1/2 Montgomeryshire Yeomanry - 1916, 3rd line disbanded - early 1917.
 
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