Sir Francis
| Name | Sir Francis |
| Type | Steamer |
| GRT | 1,991 tons |
| Country |  British |
| Built | 1910 |
| Builder | S. P. Austin & Son, Ltd., Sunderland |
| Operator | Cory Colliers, Ltd., London |
| History |
U-boat attacks on Steamer Sir Francis
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 7 Jun 1917 | UB 21 (Franz Walther) | Sunk | 2 miles NE of Scarborough | 54° 19'N, 0° 22'W | London - Tyne | in ballast | 10 |
Position of attack on Sir Francis
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