| Nahrstedt, John; ISMA Directory; 1906 | ISMA Directory | 1906-00-00 | MCDOUGALL | Captain |
| Nahrstedt, John; ISMA Directory; 1907 | ISMA Directory | 1907-00-00 | MCDOUGALL, ALEXANDER | Captain |
| Nahrstedt, John; ISMA Directory; 1908 | ISMA Directory | 1908-00-00 | MCDOUGALL, ALEXANDER | Captain |
| Nahrstedt, John; ISMA Directory; 1909 | ISMA Directory | 1909-00-00 | MCDOUGALL, ALEXANDER | Captain |
| Nahrstedt, John; ISMA Directory; 1910 | ISMA Directory | 1910-00-00 | MORSE, S.F.B. | Captain |
| Nahrstedt, John; ISMA Directory; 1911 | ISMA Directory | 1911-00-00 | MORSE | Captain |
| Nahrstedt, John; ISMA Directory; 1912 | ISMA Directory | 1912-00-00 | GARY, E.H. | Captain |
| Nahrstedt, John; ISMA Directory; 1913 | ISMA Directory | 1913-00-00 | GARY | Captain |
| Nahrstedt, John; ISMA Directory; 1914 | ISMA Directory | 1914-00-00 | LYNCH, THOMAS | Captain |
| Nahrstedt, John; ISMA Directory; 1916 | ISMA Directory | 1916-00-00 | LYNCH, THOMAS | Captain |
| Nahrstedt, John; ISMA Directory; 1917 | ISMA Directory | 1917-00-00 | DINKEY | Captain |
| Nahrstedt, John; ISMA Directory; 1918 | ISMA Directory | 1918-00-00 | DINKEY | Captain |
| Nahrstedt, John; ISMA Directory; 1919 | ISMA Directory | 1919-00-00 | DINKEY | Captain |
| Nahrstedt, John; ISMA Directory; 1920 | ISMA Directory | 1920-00-00 | DINKEY | Captain |
| Nahrstedt, John; ISMA Directory; 1921 | ISMA Directory | 1921-00-00 | DINKEY | Captain |