| April 1941 | CO: Lt Col JAL Powell |
| Apr 41 | North Irish Horse |
| 2 - 4 | Portrush 61 Div exercise. All HQs in communication exercise. |
| 8 – 9 | C Sqn took part in 61 Div exercise. |
| 16 – 18 | Regt took part in 61 Div exercise. |
| 19/4/41 | A Sqn moved to BALLYKINLAR to take over Valentine tanks, and was the first Sqn of the Regt to be converted into a Sqn of an Armoured Regt. |
| 20 - 21 | Major-General Sir John Brown KCB CBE DSO TD TA visited the Regt and dined in the Mess. |
| 22/4/41 | HRH the Duke of Gloucester visited A Sqn. |
| 23/4/41 | The following NCOs attended an OCTU Interview Board:- Sgt Templeton, Sgt Fletcher, SQMS McIlherne, Lcpl Craig, Lcpl Williams, Lcpl Cadden. |
| 24/3/41 | Lt CM LeClair MC, posted from 53rd Training Regt as Tech Adjt. 2Lt WEW Montgomery joined for duty from 101 OCTU. |
| 29/4/41 | 2Lt PMB Pope joined from 102 OCTU. |