Essonite
| Name | Essonite |
| Type | Steamer |
| GRT | 589 tons |
| Country |  British |
| Built | 1904 |
| Builder | Scott & Sons, Bowling |
| Operator | Wm. Robertson, Glasgow |
| History |
U-boat attacks on Steamer Essonite
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 1 Feb 1917 | U 55 (Wilhelm Werner) | Sunk | 3 miles NNW of Trevose Head | 50.35N, 05.04W | Carnarvon - Rochester | stone | 10 |
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