- 1960Senior Microbiologist
- 1925Research Worker
- 1939Research Chemist
- 1940Research Chemist
- 1941Research Chemist
- 1945Research Chemist
- 1947Research Chemist
- 1948Research Chemist
- 1948Chemist
- 2005[position unknown]
- 1925Research Chemist
- 2007[position unknown]
- 1941Research Assistant In Physiological Chemistry
- 1925Chemist
- 1925Director Of Research
- 1939Director Of Research
- 1940Director Of Research
- 1941Director Of Research
- 1942Director Of Research
- 1943Director Of Research
- 1946Research Director, Emeritus
- 1947Research Director Emeritus
- 1950Research Director Emeritus
- 1954Research Director Emeritus
- 1955Research Director Emeritus
- 1947Research Assistant
- 1948Chemist Assistant
- 1949[position unknown]
- 1941Research Assistant
- 2000[position unknown]
- 1937Research Chemist
- 1939Research Chemist
- 1940Research Chemist
- 1941Research Chemist
- 1942Research Chemist
- 1943Chemist
- 1937Research Chemist