William Dawson
| Name | William Dawson |
| Type | Steamer |
| GRT | 284 tons |
| Country |  British |
| Built | 1872 |
| Builder | A. Simey & Co., Sunderland |
| Operator | John M Lennard & Sons, Ltd. (Benjamin O. Davies), Middlesborough |
| History |
U-boat attacks on Steamer William Dawson
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 21 Aug 1915 | UC 5 (Herbert Pustkuchen) | Sunk | Mined 1 mile from Boulogne | Boston (Linc.) - Dunkirk | coal | 5 |
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