| Witte, William; ISMA Directory; 1917 | ISMA Directory | 1917-00-00 | MAITLAND, ALEX. | Captain |
| Witte, William; ISMA Directory; 1918 | ISMA Directory | 1918-00-00 | FRENCH, G. WATSON | Captain |
| Witte, William; ISMA Directory; 1919 | ISMA Directory | 1919-00-00 | FRENCH, G. WATSON | Captain |
| Witte, William; ISMA Directory; 1920 | ISMA Directory | 1920-00-00 | FRENCH, G. WATSON | Captain |
| Witte, William; ISMA Directory; 1921 | ISMA Directory | 1921-00-00 | LABELLE | Captain |
| Witte, William; ISMA Directory; 1922 | ISMA Directory | 1922-00-00 | | Captain |
| Witte, William; ISMA Directory; 1924 | ISMA Directory | 1924-00-00 | WARNER, CHARLES M. | Captain |