12th /13th PARA was created from an amalgamation of both TA Parachute Battalions in October 1956 and formed part of the 44th Independent Parachute Brigade Group (TA).
It amalgamated with 17 PARA (TA) in 1967 to form 4 PARA (V).
Commanding Officers:
| 1956 | Lt Col JWB Marshall |
| 1956-57 | Lt Col R Crawshaw, OBE |
| 1957-61 | Lt Col G Pollard, OBE, MC, MM, TD |
| 1961-64 | Lt Col G W Hawkes, MC |
| 1964-66 | Lt Col PJ O’Kane |
Major George Halewood , MM MBE TD 
Private Alan Newhouse 
Major John M Patchett , TD 
Private Les Jones 
Private Eric Sampson 