C. A. Jaques
| Name | C. A. Jaques |
| Type | Steamer |
| GRT | 2,105 tons |
| Country |  British |
| Built | 1909 |
| Builder | A. McMillan & Son, Ltd., Dumbarton |
| Operator | Canada Steamship Lines, Ltd., Glasgow (Montreal) |
| History |
U-boat attacks on Steamer C. A. Jaques
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 1 May 1917 | UB 18 (Claus Lafrenz) | Sunk | 26 miles WSW of Boulogne | 50.27N, 01.04E | Rouen - Tyne | in ballast | 3 |
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