| 1 | A | B | C | D | E | F |
| --- | --- | --- | --- | --- | --- | --- |
| 2 | Convoys HX 229/SC 122 - Allied ships |  |  |  |  |  |
| 3 | Date | Name | Flag | Casualties | Tonnage (GRT) | Sunk by |
| 4 | 16 March 1943 | Elin K | Norway | 0 | 5,214 | U-603 |
| 5 | 16/17 March 1943 | Zaanland | Netherlands | 0 | 6,513 | U-758 |
| 6 | 16/17 March 1943 | Southern Princess | United Kingdom | 4 | 12,156 | U-600 |
| 7 | 16/17 March 1943 | Harry Luckenbach | United States | 80 | 6,366 | U-91 |
| 8 | 16/17 March 1943 | Coracero | United Kingdom | 5 | 7,252 | U-384 |
| 9 | 16/17 March 1943 | Terkoeli | Netherlands | 36 | 5,158 | U-631, U-384? |
| 10 | 17 March 1943 | James Oglethorpe | United States | 44 | 7,176 | U-758, U-91 |
| 11 | 17 March 1943 | William Eustis | United States | 0 | 7,196 | U-435, U-91 |
| 12 | 17 March 1943 | Nariva | United Kingdom | 0 | 8,714 | U-600, U-91 |
| 13 | 17 March 1943 | Irenee du Pont | United States | 24 | 6,125 | U-600, U-91 |
| 14 | 18 March 1943 | William Q Gresham | United States | 27 | 7,191 | U-221 |
| 15 | 18 March 1943 | Canadian Star | United Kingdom | 29 | 8,293 | U-221 |
| 16 | 19 March 1943 | Matthew Luckenbach | United States | ? | 5,848 | U-523, U-527 |

Question: Which HX 229 ships were sunk by U-221 and when?
Answer: On 18 March, U-221 sunk two ships of HX 229 (William Q Gresham and Canadian Star).