Petersham
| Name | Petersham |
| Type | |
| GRT | 3,381 tons |
| Country |  British |
| Built | |
| Builder | |
| Operator | |
| History |
U-boat attacks on Petersham
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 24 Sep 1917 | U 94 (Alfred Saalwächter) | Damaged | off North Channel - Hit by torpedo, made port | 55.30N, 07.37W | |||
| per BVLA,S assaulted by gunfire. Sank in collision May 5,1918 | ||||||||
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