Halldor
| Name | Halldor |
| Type | Steamer |
| GRT | 2,919 tons |
| Country |  Norwegian |
| Built | 1896 |
| Builder | J. Priestman & Co., Sunderland |
| Operator | A/S D/S Halldor (Abr. & Fr. Odfjell), Bergen |
| History |
U-boat attacks on Steamer Halldor
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 3 Aug 1917 | U 39 (Walter Forstmann) | Sunk | Stopped and scuttled 90 miles W of Gibraltar | 36° 58'N, 6° 51'W | Glasgow - Civitavecchia | coal | 0 |
Position of attack on Halldor
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