NEW ENTRY | DATE | ENGINE | HEADCODE | TRAIN/LOCATION | NOTES |
| 02/03/1966 | D344 | | 1255 Bangor - London Euston | To Crewe at least |
# | 03/03/1966 | D23 + D351 | | 2150 York - Shrewsbury | Seen at Leeds & Stalybridge |
| 04/03/1966 | D257 | | Banker at South Pelaw Junction | Banked 92060 on a loaded iron ore train from South Shields - Consett. D257 banked from South Pelaw Junction - ? |
| 05/03/1966 | D233 | | 0845 London Euston - Birmingham New Street | |
| 05/03/1966 | D305 | | 1120 Birmingham New Street - Glasgow Central | |
| 05/03/1966 | D300 | | 1130 Holyhead - London Euston | Seen at Bangor |
| 05/03/1966 | D268 | | Coventry - Liverpool Lime Street | Footex |
| 05/03/1966 | D288 | | Coventry - Liverpool Lime Street | Load 10. Footex, from ? - ? |
| 05/03/1966 | D331 | | London Euston - Preston | Footex, from Crewe |
| 05/03/1966 | D318 | | Seen at Coventry | On down freight |
| 07/03/1966 | D213 | | Seen at Skipton Station | Stabled |
| 07/03/1966 | | | The Somerset & Dorset Railway finally closes on this day | Click here for additional information |
| 08/03/1966 | D387 | | Stanlow - Liversage | Tank train |
| 10/03/1966 | D330 | 9T24 | ? - ? | Seen at Swanbourne Sidings on the Cambridge - Oxford line |
| 10/03/1966 | D221 | | Stabled at Winslow | On the Cambridge - Oxford line |
# | 11/03/1966 | D1873 + D351 | | 2150 York - Shrewsbury | Seen at Leeds & Stalybridge |
| 12/03/1966 | D356 | | 0900 Liverpool Lime Street - Newcastle | |
| 12/03/1966 | D314 | | Seen at Carlisle Station | Up passenger |
| 13/03/1966 | D228 | | Stabled at St Margarets Depot | |
| 16/03/1966 | D316 | | Up Royal Scot | |
| 18/03/1966 | D225 | | ? - Bathgate | Seen at Carlisle Upperby, cartics |
# | 18/03/1966 | D242 | | 1642 Newcastle - Liverpool Lime Street | |
# | 18/03/1966 | D24 + D394 | | 2150 York - Shrewsbury | Seen at Huddersfield & Stalybridge |
| 19/03/1966 | D357 | | 1410 Aberdeen - Elgin | |
| 20/03/1966 | D209 | | At Crewe Works | In the Erecting Shop |
| 20/03/1966 | D215 | | At Crewe Works | In the Erecting Shop |
| 20/03/1966 | D219 | | At Crewe Works | In the Erecting Shop |
| 20/03/1966 | D220 | | At Crewe Works | In the Erecting Shop |
| 20/03/1966 | D233 | | At Crewe Works | In the Erecting Shop |
| 20/03/1966 | D234 | | At Crewe Works | In the Erecting Shop |
| 20/03/1966 | D241 | | At Crewe Works | In the Erecting Shop |
| 20/03/1966 | D243 | | At Crewe Works | In the Yard |
| 20/03/1966 | D251 | | At Crewe Works | In the Erecting Shop |
| 20/03/1966 | D272 | | At Crewe Works | In the Erecting Shop |
| 20/03/1966 | D278 | | At Crewe Works | In the Erecting Shop |
| 20/03/1966 | D290 | | At Crewe Works | In the Erecting Shop |
| 20/03/1966 | D297 | | At Crewe Works | In the Paint Shop |
| 20/03/1966 | D299 | | At Crewe Works | In the Erecting Shop |
| 20/03/1966 | D300 | | At Crewe Works | In the Yard |
| 20/03/1966 | D305 | | At Crewe Works | In the Erecting Shop |
| 20/03/1966 | D307 | | At Crewe Works | In the Erecting Shop |
| 20/03/1966 | D309 | | At Crewe Works | In the Erecting Shop |
| 20/03/1966 | D320 | | At Crewe Works | In the Diesel Shop |
| 20/03/1966 | D343 | | At Crewe Works | In the Erecting Shop |
| 21/03/1966 | D357 | | Seen at Insch | Southbound freight |
| 24/03/1966 | E3193 + D342 | | 2250 London Euston - Perth | From Bletchley to Crewe,inside to provide heat |
| 25/03/1966 | D296 | | ? - London Euston | Seen arriving on sleeper train |
# | 25/03/1966 | D393 | | 1642 Newcastle - Liverpool Lime Street | |
# | 25/03/1966 | D29 + D270 | | 2150 York - Shrewsbury | Seen at Huddersfield & Stalybridge |
| 26/03/1966 | D319 | | Sefton Arms - Lostock Hall | < Ecs |
# | 26/03/1966 | D248 | | 2150 York - Shrewsbury | Seen at Huddersfield & Stalybridge |
| 26/03/1966 | D319 | | Birmingham New Street - Sefton Arms | Race ex > |
| 27/03/1966 | D340 | | Stabled at St Margarets Depot | |
| 28/03/1966 | D300 | | At Crewe Works | |
| 31/03/1966 | D243 | 1??? | Kings Cross - Doncaster | Passenger. At least |
| 31/03/1966 | D350 | | Seen at Peterborough | On? |