Frigate of the River class
| Navy | The Royal Canadian Navy |
| Type | Frigate |
| Class | River |
| Pennant | K 459 |
| Built by | Morton Engineering and Dry Dock Co. (Quebec City, Quebec, Canada) |
| Ordered | |
| Laid down | 7 Jul, 1943 |
| Launched | 30 Oct, 1943 |
| Commissioned | 24 May, 1944 |
| End service | 18 Nov, 1945 |
| Loss position | |
| |
| History | Decommissioned 18 November 1945.
Commanding Officers:
T/Lt. John Alfred Robert Allen, DSC, RCNVR
Promoted to A/Lt.Cdr. on 1 July 1945
24 May 1944 - 21 July 1945
Lt.Cdr. Thomas Gilmour, RCNR
21 July 1945 - 18 November 1945 |
| Noteable events involving Thetford Mines include: 7 Mar, 1945 The German submarine U-1302 was sunk in St George´s Channel, in position 52º19'N, 05º23'W, by depth charges / hedgehog from the Canadian frigates HMCS La Hulloise (Lt.Cdr. J. Brock, RCNVR), HMCS Strathadam (A/Lt.Cdr. H.L. Quinn, DSC, RCNVR) and HMCS Thedford Mines (Lt. J.A.R. Allan, DSC, RCNVR). (see map) 23 Mar, 1945 HMCS Thedford Mines (Lt. J.A.R. Allan, DSC, RCNVR) picks up 33 survivors from the German submarine U-1003, but two of them died aboard and were buried at sea. |