| Dennis, H. L.; ISMA Directory; 1906 | ISMA Directory | 1906-00-00 | BOSTON | Captain |
| Dennis, H. L.; ISMA Directory; 1908 | ISMA Directory | 1908-00-00 | MOHAWK | Captain |
| Dennis, H. L.; ISMA Directory; 1909 | ISMA Directory | 1909-00-00 | UTICA | Captain |
| Dennis, H. L.; ISMA Directory; 1910 | ISMA Directory | 1910-00-00 | UTICA | Captain |
| Dennis, H. L.; ISMA Directory; 1911 | ISMA Directory | 1911-00-00 | UTICA | Captain |
| Dennis, H. L.; ISMA Directory; 1912 | ISMA Directory | 1912-00-00 | UTICA | Captain |
| Dennis, H. L.; ISMA Directory; 1913 | ISMA Directory | 1913-00-00 | DULUTH | Captain |
| Dennis, H. L.; ISMA Directory; 1914 | ISMA Directory | 1914-00-00 | DULUTH | Captain |
| Dennis, H. L.; ISMA Directory; 1916 | ISMA Directory | 1916-00-00 | BUFFALO | Captain |
| Dennis, H. L.; ISMA Directory; 1917 | ISMA Directory | 1917-00-00 | BUFFALO | Captain |
| Dennis, H. L.; ISMA Directory; 1918 | ISMA Directory | 1918-00-00 | BUFFALO | Captain |