Northamptonshire Yeomanry
| Date | Unit | Higher Formation |
| . | . | . |
| . | . | . |
| . | The Northamptonshire Yeomanry | . |
| 1947.01.01 | reconstituted in T.A. with HQ at Northampton | . |
| . | A Squadron at ? | . |
| . | B Squadron at ? | . |
| . | C Squadron at ? | . |
| 1956.10.31 | Reduced to D (Northamptonshire Yeomanry) Squadron, The Inns of Court Regiment | . |
| 1961.05.01 | Converted to Royal Engineers and redesignated 250 (Northamptonshire Yeomanry) Field Squadron, RE | . |
| 1967.04.01 | Reformed in TAVR III as A Company (Northamptonshire Yeomanry), The Northamptonshire Regiment (Territorials) | . |
| 1969.01.01 | Battalion reduced to cadre | . |
| 1971.04.01 | C (Northamptonshire) Company and D (Northamptonshire) Company, 7th Bn, The Royal Anglian Regiment reconstituted from cadre, and yeomanry lineage discontinued | . |
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