| Year | Position | Institution |
| 1951 | University Of North Carolina | |
| 1953 | Graduate Student | University Of North Carolina |
| 1954 | Graduate Student | University Of North Carolina |
| 1957 | Instructor In Zoology | University Of Vermont |
| 1958 | Assistant Professor Of Zoology | Louisiana State University |
| 1959 | Marine Biological Laboratory | |
| 1960 | Marine Biological Laboratory | |
| 1961 | Marine Biological Laboratory | |
| 1962 | Marine Biological Laboratory | |
| 1963 | Marine Biological Laboratory | |
| 1967 | Associate Professor Of Biology | Brooklyn College |
| 1970 | Professor Of Biology | Brooklyn College |
| 1977 | Brooklyn College City University Of New York | |
| 1979 | Brooklyn College | |
| 1980 | Brooklyn College | |
| 1981 | Brooklyn College | |
| 1982 | Brooklyn College | |
| 1983 | Brooklyn College | |
| 1984 | Brooklyn College | |
| 1995 | Brooklyn College |
| Year | Role | Course |
| 1951 | Student | Embryology 1951 |
| 1977 | Special Lecturer | Developmental Biology 1977 |
| 1979 | Faculty/Staff/Lecturer | Developmental Biology 1979 |
| 1980 | Faculty/Staff/Lecturer | Developmental Biology 1980 |
| Year | Subject | Role |
| 1953 | Beginners | |
| 1954 | Independent Investigators | |
| 1954 | Lalor Fellows | |
| 1957 | Independent | |
| 1958 | Independent | |
| 1959 | Library Readers | |
| 1960 | Independent | |
| 1961 | Independent | |
| 1962 | Independent | |
| 1963 | Independent | |
| 1967 | Independent | |
| 1970 | Independent | |
| 1980 | Library Readers | |
| 1981 | Library Readers | |
| 1982 | Library Readers | |
| 1983 | Library Readers | |
| 1984 | Library Readers | |
| 1995 | Library Readers |