Union
| Name | Union |
| Type | Steamer |
| GRT | 677 tons |
| Country |  French |
| Built | 1898 |
| Builder | Wood, Skinner & Co., Ltd., Newcastle |
| Operator | Delegrange, G. E. Bates & Cie., Rouen |
| History |
U-boat attacks on Steamer Union
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 26 Jan 1918 | U 90 (Walter Remy) | Sunk | 7 miles N of Sept Iles | 48.58N, 03.30W | Cardiff - Rouen | coal |
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