Wessex Volunteers
| Dates | Locations | Higher Formation/Remarks |
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| . | Wessex Volunteers | . |
| 1967.04.01 | formed in TAVR II with HQ at Exeter, and companies serving as successors to former TA battalions in the Wessex Brigade: | . |
| . | HQ Company (Devon) at Exeter, successor to 4th Bn The Devonshire Regt | . |
| . | A Company (Gloucester) at Gloucester, successor to 5th Bn The Gloucestershire Regt; formed dets 1971 at Cheltenham, Bristol and Trowbridge; formed dets by 1989 at Bristol and Cinderford | . |
| . | B Company (Hampshire) at Winchester, successor to 4th/5th Bn The Royal Hampshire Regt; plns formed 1971 at Basingstoke and Newport, IOW | . |
| . | C Company (Dorset) at Dorchester with Pln at Poole, successor to 4th Bn The Dorset Regt and elements 294 (Dorset Yeomanry) Field Regt RA; det formed 1971 at Wallisdown | . |
| . | D Company (Berkshire) at Reading, successor to 4th/6th Bn The Royal Berkshire Regt; formed det 1971 at Swindon | . |
| 1970 | E Company (Devon) formed at Exeter with Plns at Plymouth and Barnstaple by reorganisation HQ Coy; new HQ Company formed at Trowbridge from A Coy The Royal Wiltshire TerritorialsÃÂ | . |
| 1971.04.01 | Renamed 1st Battalion, Wessex Volunteers HQ at Trowbridge; redesignated on formation of 2nd Battalion | . |
| 1971 | Company subtitles omitted | . |
| 1972.03.30 | Renamed 1st Battalion, The Wessex Regiment (Rifle Volunteers) | . |
| 1973 | HQ and HQ Coy moved to Devizes | . |
| 1975.04.01 | Companies reorganised: D Coy at Reading and Swindon transferred as D Company 2nd Battalion | . |
| . | HQ Company at Devizes; by 1989 dets at Gloucester, Andover and Cheltenham; by 1995 Mortar Pln at Andover, Atk Pln at Stroud, Recce Pln at Cheltenham, Pioneer Pln at Cinderford | . |
| . | A Company at Gloucester; by 1991 two plns at Bristol | . |
| . | B Company at Winchester | . |
| . | C Company at Dorchester and Weymouth | . |
| . | D (Queen's Own Dorset Yeomanry) Company at Poole (det at Bournemouth), redesignation of D Coy, 2nd Battalion (plus a pln from C Company, 1st Bn) | . |
| . | E Company at Exeter (plns at Plymouth and Barnstaple) | . |
| 1986 | B Company at Winchester redesignated B Company 2nd Battalion; new B Company formed at Swindon from elements D Coy 2nd Battalion | . |
| 1987.10.12 | E Coy expanded to form HQ Company and A Company, 4th Bn, The Devonshire and Dorset Regiment | . |
| 1990.12 | C Coy at Dorchester transferred as C Company, 4th Bn, The Devonshire and Dorset Regiment; new C Company formed at Newbury by transfer of '?' Coy 2nd Battalion | . |
| 1992.06 | Battalion reduced to three rifle company order of battle: D Company at Poole transferred as D Company 4th Bn, The Devonshire and Dorset Regiment; B Company at Swindon and C Company at Newbury transferred to 2nd Battalion; battalion now consisted solely of Gloucestershire and Wiltshire Higher Formation: | . |
| . | HQ Company at Devizes | . |
| . | A Company at Gloucester | . |
| . | B Company at Bristol, formed (effective 1 Apr. 1995) from Bristol plns of A Company and 245 Ambulance Sqn 155 Transport Regt RCT | . |
| . | C Company at Cheltenham and Tewkesbury, formed (effective 1 Apr. 1995) from existing elements | . |
| 1995.10.06 | Amalgamated with 2nd Battalion to form 2nd (V) Bn, The Royal Gloucestershire, Berkshire and Wiltshire Regiment | . |
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| . | 2nd Battalion Wessex Volunteers | . |
| 1971.04.01 | Formed with Headquarters at Brock Barracks, Reading from cadres of The Buckinghamshire Regiment RA, The Royal Berkshire Territorials, The Hampshire and Isle of Wight Territorials and The Dorset Territorials. | . |
| . | HQ Company at Reading | . |
| . | A (Royal Buckinghamshire Yeomanry) Company at Bletchley from cadre The Buckinghamshire Regiment RA | . |
| . | B (Duke of Connaught's) Company at Portsmouth from cadre The Hampshire and Isle of Wight Territorials. | . |
| . | C (Royal Berkshire) Company at Maidenhead, Slough and Basingstoke from cadre The Royal Berkshire Territorials | . |
| . | D (Queen's Own Dorset Yeomanry) Company at Poole, Bournemouth and Weymouth. Formed from cadre The Dorset Territorials | . |
| . | later: 'A' Company at Portsmouth and 'B' Company at Bletchley. | . |
| 1972.03.30 | Redesignated 2nd Battalion The Wessex Regiment (Volunteers). Headquarters at Brock Barracks, Reading. No change in companies. | . |
| 1975.04.01 | D Company at Poole redesignated D Company 1st Battalion. New D Company formed at Reading and Swindon by redesignation D Company 1st Battalion | . |
| 1984 | E (HSF) Company formed at Reading, Maidenhead, Winchester and Portsmouth | . |
| 1986 | B Company at Bletchley disbanded. New B Company formed at Winchester, Southampton and Newport, IOW by transfer B Company 1st Battalion. | . |
| . | Swindon platoon D Company formed nucleus B Company 1st Battalion | . |
| 1992 | Battalion reduced into three rifle companies order of battle. | . |
| 1992.09.09 | A Company and B Company reformed as C Company 6th/7th (Volunteer) Battalion The Princess of Wales's Royal Regiment | . |
| . | New ? Company formed at Swindon by transfer B Company 1st Battalion; new ? Company formed at Newbury by transfer C Company 1st Battalion. C Company moved to Slough | . |
| . | E (HSF) Company disbanded. | . |
| 1995.10.06 | Battalion disbanded and amalgamated with 1st Battalion to form 2nd (Volunteer) Battalion The Royal Gloucestershire, Berkshire and Wiltshire Regiment | . |
| . | HQ/D Company redesignated as HQ Company and Swindon? Company reorganised as part of C Company. C Company converted as D (Berkshire Yeomanry) Squadron Royal Yeomanry | . |
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