| Warwick, George; ISMA Directory; 1906 | ISMA Directory | 1906-00-00 | YOSEMITE | Captain |
| Warwick, George; ISMA Directory; 1907 | ISMA Directory | 1907-00-00 | YOSEMITE | Captain |
| Warwick, George; ISMA Directory; 1908 | ISMA Directory | 1908-00-00 | SOCAPA | Captain |
| Warwick, George; ISMA Directory; 1912 | ISMA Directory | 1912-00-00 | SOCAPA | Captain |
| Warwick, George; ISMA Directory; 1913 | ISMA Directory | 1913-00-00 | HARTWELL, FRED C. | Captain |
| Warwick, George; ISMA Directory; 1914 | ISMA Directory | 1914-00-00 | PHILBIN, D.M. | Captain |
| Warwick, George; ISMA Directory; 1916 | ISMA Directory | 1916-00-00 | SIERRA | Captain |
| Warwick, George; ISMA Directory; 1917 | ISMA Directory | 1917-00-00 | SIERRA | Captain |
| Warwick, George; ISMA Directory; 1918 | ISMA Directory | 1918-00-00 | SIERRA | Captain |
| Warwick, George; ISMA Directory; 1919 | ISMA Directory | 1919-00-00 | SIERRA | Captain |
| Warwick, George; ISMA Directory; 1920 | ISMA Directory | 1920-00-00 | SIERRA | Captain |
| Warwick, George; ISMA Directory; 1921 | ISMA Directory | 1921-00-00 | DAVIDSON, J. | Captain |
| Warwick, George; ISMA Directory; 1922 | ISMA Directory | 1922-00-00 | | Captain |
| Warwick, George; ISMA Directory; 1923 | ISMA Directory | 1923-00-00 | DAVIDSON, J. | Captain |