| Conlon, Louis B.; ISMA Directory; 1919 | ISMA Directory | 1919-00-00 | MARIPOSA | Captain |
| Conlon, Louis B.; ISMA Directory; 1920 | ISMA Directory | 1920-00-00 | MARIPOSA | Captain |
| Conlon, Louis B.; ISMA Directory; 1921 | ISMA Directory | 1921-00-00 | MARIPOSA | Captain |
| Conlon, Louis B.; ISMA Directory; 1922 | ISMA Directory | 1922-00-00 | FULTON | Captain |
| Conlon, Louis B.; ISMA Directory; 1923 | ISMA Directory | 1923-00-00 | MARITANA | Captain |
| Conlon, Louis B.; ISMA Directory; 1924 | ISMA Directory | 1924-00-00 | NEILSON, JAMES B. | Captain |
| Conlon, Louis B.; ISMA Directory; 1925 | ISMA Directory | 1925-00-00 | CRESCENT CITY | Captain |
| Conlon, Louis B.; ISMA Directory; 1926 | ISMA Directory | 1926-00-00 | CRESCENT CITY | Captain |
| Conlon, Louis B.; ISMA Directory; 1927 | ISMA Directory | 1927-00-00 | MCDOUGALL | Captain |
| Conlon, Louis B.; ISMA Directory; 1928 | ISMA Directory | 1928-00-00 | BUNSEN, R.W.E. | Captain |
| Conlon, Louis B.; ISMA Directory; 1929 | ISMA Directory | 1929-00-00 | BUNSEN, R.W.E. | Captain |
| Conlon, Louis B.; ISMA Directory; 1931 | ISMA Directory | 1931-00-00 | RENSSELAER | Captain |
| Conlon, Louis B.; ISMA Directory; 1934 | ISMA Directory | 1934-00-00 | | Captain |
| Conlon, Louis B.; ISMA Directory; 1935 | ISMA Directory | 1935-00-00 | | Captain |
| Conlon, Louis B.; ISMA Directory; 1936 | ISMA Directory | 1936-00-00 | | Captain |
| Conlon, Louis B.; ISMA Directory; 1937 | ISMA Directory | 1937-00-00 | | Captain |
| Conlon, Louis B.; ISMA Directory; 1938 | ISMA Directory | 1938-00-00 | | Captain |
| Conlon, Louis B.; ISMA Directory; 1939 | ISMA Directory | 1939-00-00 | | Captain |
| Conlon, Louis B.; ISMA Directory; 1940 | ISMA Directory | 1940-00-00 | | Captain |
| Conlon, Louis B.; ISMA Directory; 1941 | ISMA Directory | 1941-00-00 | | Captain |
| Conlon, Louis B.; ISMA Directory; 1942 | ISMA Directory | 1942-00-00 | | Captain |
| Conlon, Louis B.; ISMA Directory; 1943 | ISMA Directory | 1943-00-00 | | Captain |