| Year | Position | Institution |
| 1954 | Instructor | Wilmer Institute Johns Hopkins Hospital 4 |
| 1955 | Instructor In Physiological Optics | Johns Hopkins University 4 |
| 1956 | Biophysicist | National Institutes Of Health 4 |
| Year | Subject | Role |
| 1954 | Independent Investigators | |
| 1955 | Independent | |
| 1956 | Independent |