| Year | Role | Course |
| 1964 | Research Assistant | Systematics-Ecology Program 1964 |
| 1965 | Research Assistant | Systematics-Ecology Program 1965 |
| 1966 | Biophotographer And Assistant Chief Diver | Systematics-Ecology Program 1966 |
| 1968 | Technical Field Assistant | Systematics-Ecology Program 1968 |
| 1969 | Technical Field Assistant | Systematics-Ecology Program 1969 |
| 1970 | Technical Field Assistant | Systematics-Ecology Program 1970 |
| 1971 | Technical Field Assistant | Systematics-Ecology Program 1971 |