Buckinghamshire Yeomanry
| Date | Unit | Higher Formation |
| . | . | . |
| . | . | . |
| . | 299 (Buckinghamshire Yeomanry) Field Regiment RA (TA) | . |
| 1947.01.01 | Reconstituted in TA with HQ at Aylesbury, Bucks: Continuity with 99 (Buckinghamshire and Berkshire Yeomanry) Field Regiment | 89 (Fd) AGRA (TA) |
| 1950.09.15 | Amalgamated with 387 Regiment as 387/299 Regiment renumbered 1.7.51 as 299 (Royal Buckinghamshire Yeomanry and Queen's Own Oxfordshire Hussars) Field Regiment RA (TA) | . |
| 1956.10.31 | Amalgamated with 345 Regiment as 299 (Royal Buckinghamshire Yeomanry, Berkshire Yeomanry, and The Queen's Own Oxfordshire Hussars) Field Regiment RA (TA) | . |
| 1956.10.31 | 89 (Fd) AGRA (TA) redesignated HQ RA 54 (East Anglian) Div (TA) | 54 (East Anglian) Div |
| 1961.05.01 | a) R (Berkshire Yeomanry) Bty amalgamated with Westminster Dragoons (2nd County of London Yeomanry) as The Berkshire and Westminster Dragoons RAC | . |
| . | b) Regiment (less R Bty) amalgamated with 431 Regiment & 143 C & R Sec to form 299 (Royal Buckinghamshire Yeomanry, Queen's Own Oxfordshire-Hussars, and Berkshire) Field Regiment. (Field omitted 4.10.61-18.3.63) | . |
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