Oxfordshire Yeomanry
| Date | Unit | Higher Formation |
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| . | 387 (Oxfordshire Yeomanry) Field Regiment RA | . |
| 1947.01.01 | Reconstituted in TA with HQ at Oxford | . |
| 1950.09.15 | Regiment amalgamated with 299 (Buckinghamshire Yeomanry) Field Regt RA as 387/299 (Royal Buckinghamshire Yeomanry and Queen's Own Oxfordshire Hussars) Field Regiment RA | . |
| 1951.07.01 | Redesignated 299 (Royal Buckinghamshire Yeomanry and Queen's Own Oxfordshire Hussars) Field Regiment RA | . |
| 1956.10.31 | Regiment absorbed 345 (Berkshire Yeomanry) Medium Regiment as Q (Queen's Own Oxfordshire Hussars) Battery, 299th (Royal Buckinghamshire Yeomanry, Berkshire Yeomanry, and Queen's Own Oxfordshire Hussars) Field Regiment, RA | . |
| 1961.05.01 | Regiment absorbed 431 LAA Regiment RA and 143 Control and Reporting Section RA as Q (Queen's Own Oxfordshire Hussars) Battery, 299th (Royal Buckinghamshire Yeomanry, Queen's Own Oxfordshire Hussars, and Berkshire) Field Regiment, RA. Berkshire Yeomanry separated and amalgamated with Westminster Dragoons | . |
| 1967.04.01 | A (Queen's Own Oxfordshire Hussars) Company, The Oxfordshire Territorials formed in TAVR III at Oxford upon disbandment of 299 Field Regt RA | . |
| 1969.01.01 | Battalion reduced to cadre (some personnel to 39 Signal Regiment), and QOOH lineage discontinued | . |
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