- 1948Professor
- 1949Professor Of Chemistry
- 1950Professor Of Chemistry
- 1951Professor Of Chemistry
- 1966[position unknown]
- 1967[position unknown]
- 1968[position unknown]
- 1969[position unknown]
- 1970[position unknown]
- 1971[position unknown]
- 1972[position unknown]
- 1973[position unknown]
- 1974[position unknown]
- 1947Professor
- 2000[position unknown]
- 1977Albert Einstein College Of Medicine
- 1947Assistant Professor Of Biology