| Year | Position | Institution |
| 1949 | University Of Michigan 4 | |
| 1951 | University Of Michigan 4 | |
| 1952 | National Science Foundation 4 | |
| 1958 | Chairman | Department Of Botany University Of Hawaii 4 |
| Year | Role | Course |
| 1949 | Laboratory Assistant | Botany 1949 |
| 1952 | Student | Marine Ecology 1952 |
| Year | Subject | Role |
| 1951 | Research Assistants | |
| 1958 | Independent |