| MacGregor, W. B.; ISMA Directory; 1906 | ISMA Directory | 1906-00-00 | STEPHENSON | Captain |
| MacGregor, W. B.; ISMA Directory; 1907 | ISMA Directory | 1907-00-00 | PHIPPS, H. | Captain |
| MacGregor, W. B.; ISMA Directory; 1908 | ISMA Directory | 1908-00-00 | PHIPPS, HENRY | Captain |
| MacGregor, W. B.; ISMA Directory; 1909 | ISMA Directory | 1909-00-00 | PHIPPS, HENRY | Captain |
| MacGregor, W. B.; ISMA Directory; 1910 | ISMA Directory | 1910-00-00 | PHIPPS, HENRY | Captain |
| MacGregor, W. B.; ISMA Directory; 1912 | ISMA Directory | 1912-00-00 | DAVIDSON, JAMES E. | Captain |
| MacGregor, W. B.; ISMA Directory; 1914 | ISMA Directory | 1914-00-00 | GRIFFIN | Captain |
| MacGregor, W. B.; ISMA Directory; 1918 | ISMA Directory | 1918-00-00 | GRIFFIN | Captain |