Glamorgan Yeomanry
| Date | Unit | Higher Formation |
| . | . | . |
| . | . | . |
| . | 281 (Welsh) Field Regiment RA (TA) | . |
| 1.1.47 | Reconstituted in TA with HQ at Port Talbot, Glamorgan: Continuity with 81 (Welsh) Field Regiment | 53 (W) Inf Div |
| 30.9.53 | Redesignated 281 (Glamorgan Yeomanry) Field Regiment RA (TA) | . |
| 10.3.55 | Amalgamated with 534 Regiment as 282 Heavy Anti-Aircraft Regiment RA (TA) | . |
| 31.10.56 | Absorbed Glamorgan btys of 408 Regiment & absorbed personnel of 887 Locating Bty (which was considered to have amalgamated) as 281 Regiment | . |
| 1.5.61 (LG 20.3.61) | Regiment disbanded and reorganised as P (Glamorgan Yeomanry) Battery, 282nd (Glamorgan and Monmouthshire) Field Regiment, RA, surplus personnel of P/281 Regiment amalgamated with 282 Heavy Anti-Aircraft Wksp REME & 533 Coy RASC (as 509 Coy (MT) RASC) | . |
| . | P (Glamorgan Yeomanry) Bty at ? | . |
| 1967.04.01 | Battery disbanded and concurrently reconstituted as a single troop in TAVR II at Cardiff as E (Glamorgan Yeomanry) Troop, 211 (South Wales) Battery, 104th Light Air Defence Regiment, RA | . |
| 1988? | E Troop redesignated as C (Glamorgan Yeomanry) Troop | Â |
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