Mercian and Lancastrian Yeomanry
| Date | Unit | Higher Formation |
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| . | The Royal Mercian and Lancastrian Yeomanry | . |
| 1992.11.01 | Formed with HQ at Telford by amalgamation of The Queen's Own Mercian Yeomanry, and The Duke of Lancaster's Own Yeomanry: | . |
| . | HQ (Shropshire Yeomanry) Squadron at Telford with detachment at Coventry | . |
| . | A (Warwickshire and Worcestershire Yeomanry) Squadron at Stourbridge | . |
| . | B (Staffordshire Yeomanry) Squadron at Dudley with detachment at Shrewsbury | . |
| . | D (Duke of Lancaster's Own Yeomanry) Squadron at Wigan and Blackpool | . |
| 1999.07.01 | Regiment reorganised by taking squadron from The Queen's Own Yeomanry | . |
| . | HQ Squadron at Telford | . |
| . | A (Staffordshire, Warwickshire and Worcestershire Yeomanry) Squadron at Dudley, formed by amalgamation of A Sqn and B Sqn; formed det later at Hereford | . |
| . | B (Shropshire Yeomanry) Squadron at Telford with Troop at Shrewsbury, formed by redesignation of HQ Sqn | . |
| . | C (Cheshire Yeomanry) Squadron at Chester, transferred from The Queen's Own Yeomanry | . |
| . | D (Duke of Lancaster's Own Yeomanry) Squadron at Wigan | . |
| 2006? | Hereford det in A Sqn disbanded; B Sqn formed det at Hereford by conversion of Hereford pln of E (Light Infantry) Coy, West Midlands Regt | . |
| 2013 | Regimental HQ at Telford. To move to Edinburgh by Oct 2014. A new HQ (Lothian and Borders Horse) Squadron will be formed in Edinburgh | . |
| . | A (Staffordshire, Warwickshire and Worcestershire Yeomanry) Squadron at Dudley. To join Royal Yeomanrybe B (Staffordshire, Warwickshire and Worcestershire Yeomanry) Squadron, with a troop detachment in Telford formed from elements of the withdrawn B (Shropshire Yeomanry) Squadron by Oct 2014 | . |
| . | B (Shropshire Yeomanry) Squadron at Telford. To be disbanded by Oct 2014, a troop detachment will remain in Telford as part of B (Staffordshire, Warwickshire and Worcestershire Yeomanry) Squadron, The Royal Yeomanry and may retain the Shropshire Yeomanry identity | . |
| . | C (Cheshire Yeomanry) Squadron at Chester, to rejoin The Queen's Own Yeomanry by Oct 2014 | . |
| . | D (Duke of Lancaster'ÂÂs Own Yeomanry) Squadron at Wigan, to join The Queen's Own Yeomanry by Oct 2014 as B (Duke of LancasterâÂÂs Own Yeomanry) Squadron | . |
| . | May be renamed as the The Scottish and North Irish Yeomanry | . |
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