| McGrath, John; ISMA Directory; 1906 | ISMA Directory | 1906-00-00 | BROCKVILLE | Captain |
| McGrath, John; ISMA Directory; 1907 | ISMA Directory | 1907-00-00 | BROCKVILLE | Captain |
| McGrath, John; ISMA Directory; 1909 | ISMA Directory | 1909-00-00 | PRESCOTT | Captain |
| McGrath, John; ISMA Directory; 1918 | ISMA Directory | 1918-00-00 | METEOR | Captain |
| McGrath, John; ISMA Directory; 1933 | ISMA Directory | 1933-00-00 | | Captain |
| McGrath, John; ISMA Directory; 1934 | ISMA Directory | 1934-00-00 | | Captain |
| McGrath, John; ISMA Directory; 1935 | ISMA Directory | 1935-00-00 | | Captain |
| McGrath, John; ISMA Directory; 1936 | ISMA Directory | 1936-00-00 | | |
| McGrath, John; ISMA Directory; 1937 | ISMA Directory | 1937-00-00 | | |
| McGrath, John; ISMA Directory; 1938 | ISMA Directory | 1938-00-00 | | |