| Navy | The Royal Navy |
| Type | ASW Trawler |
| Class | [No specific class] |
| Pennant | FY 234 |
| Built by | Cook, Welton & Gemmill (Beverley, U.K.) |
| Ordered | |
| Laid down | |
| Launched | 19 Aug 1936 |
| Commissioned | Nov 1939 |
| Lost | 11 Apr 1942 |
| Loss position | 33° 09'N, 78° 16'W |
| History | Completed on 2 October 1936. Lent to the United States Navy in February 1942 to operate of the US East coast under USN control. HMT St. Cathan (Lt. John Mackay, RNR) was sunk in a collision with the Dutch merchant Hebe south-south-east of Little River, South Carolina, U.S.A. in position 33.09'N, 78.16'W. |
Commands listed for HMS St. Cathan (FY 234)
Please note that we're still working on this section
and that we only list Commanding Officers for the duration of the Second World War.
| Commander | From | To | |
| 1 | Ch.Skr. Charles William Freer, RNR | 1 Nov 1939 | 27 Mar 1940 |
| 2 | T/Lt. Frederick Twomey, RNR | 27 Mar 1940 | 12 Jun 1941 |
| 3 | Lt. John Mackay, RNR | 12 Jun 1941 | 11 Apr 1942 |
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Notable events involving St. Cathan include:
1 Feb 1941
HMS L 27 (Lt. H.N. Edmonds, DSC, RN) conducted A/S exercises off Dartmouth, first with HMS St. Cathan (T/Lt. F. Twomey, RNR) and HMS Cape Comorin (T/Lt. N.L. Brown, RNVR) and later with ML 157, ML 157, ML 160 and ML 166. (1)
20 Feb 1941
HMS L 27 (Lt. H.N. Edmonds, DSC, RN) conducted A/S exercises off Dartmouth with HMS Ruby (T/Lt. N.L. Brown, RNVR) and HMS St. Cathan (T/Lt. F. Twomey, RNR). (2)
29 Mar 1941
HMS H 32 (Lt. B.G. Heslop, DSC, RN) departed Dartmouth for her 3rd war patrol. She wa ordered to patrol in the Bay of Biscay. H 32 was escorted out by HMS St. Cathan (T/Lt. F. Twomey, RNR). (3)
21 Nov 1941
HMS H 50 (Lt. E.T. Stanley, RN) conducted A/S exercises off Lough Foyle with HMS St. Cathan (Lt. J. Mackay, RNR). (4)
Sources
- ADM 173/16805 + ADM 199/658
- ADM 173/16805 + ADM 199/655
- ADM 199/1828
- ADM 173/16795
ADM numbers indicate documents at the British National Archives at Kew, London.