| Hartman, Robert A.; ISMA Directory; 1947 | ISMA Directory | 1947-00-00 | | Captain |
| Hartman, Robert A.; ISMA Directory; 1948 | ISMA Directory | 1948-00-00 | | Captain |
| Hartman, Robert A.; ISMA Directory; 1949 | ISMA Directory | 1949-00-00 | | Captain |
| Hartman, Robert A.; ISMA Directory; 1950 | ISMA Directory | 1950-00-00 | | Captain |
| Hartman, Robert A.; ISMA Directory; 1952 | ISMA Directory | 1952-00-00 | | Captain |
| Hartman, Robert A.; ISMA Directory; 1953 | ISMA Directory | 1953-00-00 | | Captain |
| Hartman, Robert A.; ISMA Directory; 1954 | ISMA Directory | 1954-00-00 | | Captain |
| Hartman, Robert A.; ISMA Directory; 1955 | ISMA Directory | 1955-00-00 | | Captain |