| Brock, George B.; ISMA Directory; 1896 | ISMA Directory | 1896-00-00 | | Captain |
| Brock, George B.; ISMA Directory; 1898 | ISMA Directory | 1898-00-00 | | Captain |
| Brock, George B.; ISMA Directory; 1899 | ISMA Directory | 1899-00-00 | | Captain |
| Brock, George B.; ISMA Directory; 1900 | ISMA Directory | 1900-00-00 | | Captain |
| Brock, George B.; ISMA Directory; 1901 | ISMA Directory | 1901-00-00 | | Captain |
| Brock, George B.; ISMA Directory; 1908 | ISMA Directory | 1908-00-00 | WARRINER, S.D. | Captain |
| Brock, George B.; ISMA Directory; 1910 | ISMA Directory | 1910-00-00 | FLAGG, GEORGE A. | Captain |
| Brock, George B.; ISMA Directory; 1911 | ISMA Directory | 1911-00-00 | PRICE, CHARLES S. | Captain |
| Brock, George B.; ISMA Directory; 1912 | ISMA Directory | 1912-00-00 | PRICE, CHARLES S. | Captain |
| Brock, George B.; ISMA Directory; 1913 | ISMA Directory | 1913-00-00 | AGASSIZ, R.L. | Captain |
| Brock, George B.; ISMA Directory; 1914 | ISMA Directory | 1914-00-00 | AGASSIZ, R.L. | Captain |
| Brock, George B.; ISMA Directory; 1916 | ISMA Directory | 1916-00-00 | AGASSIZ, R.L. | Captain |
| Brock, George B.; ISMA Directory; 1917 | ISMA Directory | 1917-00-00 | HILL, LOUIS W. | Captain |
| Brock, George B.; ISMA Directory; 1918 | ISMA Directory | 1918-00-00 | HILL, LOUIS W. | Captain |
| Brock, George B.; ISMA Directory; 1919 | ISMA Directory | 1919-00-00 | HILL, LOUIS W. | Captain |
| Brock, George B.; ISMA Directory; 1920 | ISMA Directory | 1920-00-00 | HILL, LOUIS W. | Captain |
| Brock, George B.; ISMA Directory; 1921 | ISMA Directory | 1921-00-00 | TOWNSEND, E.Y. | Captain |
| Brock, George B.; ISMA Directory; 1923 | ISMA Directory | 1923-00-00 | TOWNSEND, E.Y. | Captain |
| Brock, George B.; ISMA Directory; 1924 | ISMA Directory | 1924-00-00 | TOWNSEND, E.Y. | Captain |
| Brock, George B.; ISMA Directory; 1925 | ISMA Directory | 1925-00-00 | TOWNSEND, E.Y. | Captain |
| Brock, George B.; ISMA Directory; 1926 | ISMA Directory | 1926-00-00 | TOWNSEND, E.Y. | Captain |
| Brock, George B.; ISMA Directory; 1927 | ISMA Directory | 1927-00-00 | TOWNSEND, E.Y. | Captain |
| Brock, George B.; ISMA Directory; 1928 | ISMA Directory | 1928-00-00 | TOWNSEND, E.Y. | Captain |
| Brock, George B.; ISMA Directory; 1929 | ISMA Directory | 1929-00-00 | TOWNSEND, E.Y. | Captain |
| Brock, George B.; ISMA Directory; 1931 | ISMA Directory | 1931-00-00 | TOWNSEND, E.Y. | Captain |