Royal Tank Regiment
| Date | Unit | Higher Formation |
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| . | 40th (The King's) Royal Tank Regiment (TA) | . |
| 1947.01.01 | Reconstituted in TA with HQ at Bootle | . |
| . | HQ Squadron at Bootle | . |
| . | A Squadron at ? | . |
| . | B Squadron at ? | . |
| . | C Squadron at ? | . |
| 1956.11.02 | Amalgamated with 41st (Oldham) Royal Tank Regiment, to form 40th/41st Royal Tank Regiment | . |
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| . | 41st (Oldham) Royal Tank Regiment (TA) | . |
| 1947.01.01 | Reconstituted in TA with HQ at Oldham | . |
| . | A Squadron at Oldham | . |
| . | B Squadron at Oldham | . |
| . | C Squadron at Oldham | . |
| 1956.11.02 | Amalgamated with 40th (The King's) RTR, to form 40th/41st Royal Tank Regiment | . |
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| . | 40th/41st Royal Tank Regiment (TA) | . |
| 1956.11.02 | Formed with HQ at Bootle by amalgamation of 40th (The King's) Royal Tank Regiment, and 41st (Oldham) Royal Tank Regiment | . |
| . | HQ Squadron at Bootle? | . |
| . | A Squadron at Oldham? | . |
| . | B Squadron at Oldham? | . |
| . | C Squadron at Bootle? | . |
| 1967.04.01 | Disbanded and concurrently reconstituted in TAVR III as: The Duke of Lancaster's Own Yeomanry (Royal Tank Regiment) (Territorials) | . |
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| . | The Duke of Lancaster's Own Yeomanry (Royal Tank Regiment) (TA) | . |
| 1967.04.01 | Formed by disbanding and concurrently reconstituting 40th/41st Royal Tank Regiment in TAVR III | . |
| . | HQ Squadron at Clifton | . |
| . | C Squadron at Bootle | . |
| 1969.04.01 | DLOY reduced to cadre and RTR lineage discontinued | . |
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| . | 42nd (7th (23rd London) Bn, The East Surrey Regiment) Royal Tank Regiment (TA) | . |
| 1947.04.01 | Reconstituted in TA with HQ at St. Johns Hill, Clapham | . |
| . | A Squadron at ? | . |
| . | B Squadron at ? | . |
| . | C Squadron at ? | . |
| 1956.09.01 | Converted to infantry with HQ at Clapham and renamed 23rd London Regiment, The East Surrey Regiment | . |
| . | A Company at ? | . |
| . | B Company at ? | . |
| . | C Company at ? | . |
| . | D Company at ? | . |
| 1961.05.01 | Amalgamated with 6th Battalion, The East Surrey Regiment, to form 4th Battalion, The Queen's Royal Surrey Regiment | . |
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| . | 43rd (6th (City) Battalion, The Royal Northumberland Fusiliers) Royal Tank Regiment (TA) | . |
| 1947.04.01 | Reconstituted in T.A. with HQ at Newcastle | . |
| . | A Squadron at Newcastle | . |
| . | B Squadron at Newcastle | . |
| . | C Squadron at Newcastle | . |
| 1956.11.01 | Converted to infantry (HQ at Newcastle) and renamed 6th (City) Battalion, The Royal Northumberland Fusiliers | . |
| . | A Company at Newcastle | . |
| . | B Company at Newcastle | . |
| . | C Company at Newcastle | . |
| . | D Company at Newcastle | . |
| 1967.04.01 | Disbanded and concurrently with 4th/5th Battalion to form A Company (The Royal Northumberland Fusiliers), Fusilier Volunteers, and The 4th/5th/6th (T) Battalion, The Royal Northumberland Fusiliers | . |
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| . | 44th/50th Royal Tank Regiment (TA) | . |
| 1947.01.01 | Reconstituted in T.A. with HQ at Bristol and concurrently amalgamated with 50th Royal Tank Regiment | . |
| . | A Squadron at Bristol? | . |
| . | B Squadron at Bristol? | . |
| . | C Squadron at Bristol? | . |
| 1956.10.31 | Amalgamated with The North Somerset Yeomanry, to form The North Somerset Yeomanry/44th Royal Tank Regiment (TA) | . |
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| . | The North Somerset Yeomanry/44th Royal Tank Regiment (TA) | . |
| 1956.10.31 | Formed with HQ at Keynsham by amalgamation of The North Somerset Yeomanry, and 44th/50th Royal Tank Regiment | . |
| . | HQ Squadron at Keynsham and Bath | . |
| . | A Squadron at Bristol | . |
| . | B Squadron at Bristol | . |
| . | C Squadron at Weston Super MareÃÂ | . |
| 1965.04 | Renamed The North Somerset and Bristol Yeomanry | . |
| 1967.04.01 | Reorganised in TAVR III at Keynsham as A Company (North Somerset and Bristol Yeomanry), The Somerset Yeomanry and Light Infantry (Territorials), less some elements to 57 Squadron, 37 Signal Regiment, R Sigs | . |
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| . | 45th/51st (Leeds Rifles) Royal Tank Regiment (TA) | . |
| 1947.01.01 | Reconstituted in T.A. with HQ at Leeds, and concurrently amalgamated with 51st (Leeds Rifles) Royal Tank Regiment | . |
| . | A Squadron at Morley | . |
| . | B Squadron at Leeds | . |
| . | C Squadron at Leeds | . |
| 1956.10.31 | Renamed 7th (Leeds Rifles) Battalion, The West Yorkshire Regiment (TA) | . |
| . | HQ at Leeds; absorbed R? Bty, 496 HAA Regiment RA | . |
| . | A Company at Morley | . |
| . | B Company at Leeds | . |
| . | C Company at Castleford, formed by conversion of R? Bty, 496 HAA Regt | . |
| . | D Company at Leeds | . |
| 1958.04.25 | Tranferred to the corps of The Prince of Wales's Own Regiment of Yorkshire without change of title | . |
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