| Navy | The Royal Navy |
| Type | Motor minesweeper |
| Class | MMS I |
| Pennant | J 639 |
| Built by | Frank Curtis (Par, England, U.K.) |
| Ordered | 10 Mar 1941 |
| Laid down | |
| Launched | 23 Sep 1941 |
| Commissioned | 31 Jan 1942 |
| End service | |
| History | Sold in November 1945 |
Commands listed for HMS MMS 139 (J 639)
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 | Brian Selkirk Fidler, RNVR | 28 Jan 1942 | 23 Apr 1943 |
| 2 | W B Bevis, RNVR | 23 Apr 1943 | 31 May 1945 |
| 3 | D N McCallum, RNZNVR | 31 May 1945 | mid/late45 |
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