| Pederson, Knud; ISMA Directory; 1906 | ISMA Directory | 1906-00-00 | COMMODORE | Captain |
| Pederson, Knud; ISMA Directory; 1908 | ISMA Directory | 1908-00-00 | BUFFALO | Captain |
| Pederson, Knud; ISMA Directory; 1909 | ISMA Directory | 1909-00-00 | BUFFALO | Captain |
| Pederson, Knud; ISMA Directory; 1910 | ISMA Directory | 1910-00-00 | SCOTIA | Captain |
| Pederson, Knud; ISMA Directory; 1911 | ISMA Directory | 1911-00-00 | SCOTIA | Captain |
| Pederson, Knud; ISMA Directory; 1912 | ISMA Directory | 1912-00-00 | SCOTIA | Captain |
| Pederson, Knud; ISMA Directory; 1914 | ISMA Directory | 1914-00-00 | ARTHUR | Captain |
| Pederson, Knud; ISMA Directory; 1917 | ISMA Directory | 1917-00-00 | MAGNETIC | Captain |