J. M. J.
| Name | J. M. J. |
| Type | Fishing vessel (sail) |
| GRT | 54 tons |
| Country |  French |
| Built | |
| Builder | |
| Operator | |
| History |
U-boat attacks on Fishing vessel (sail) J. M. J.
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 15 Aug 1918 | U 90 (Helmut Patzig) | Sunk | W of Ushant | 48° 40'N, 11° 30'W |
Position of attack on J. M. J.
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