- 1956Instructor Of Zoology
- 1946Instructor In Biology
- 1934Student
- 1935[position unknown]
- 1945Instructor In Biology
- 1955[position unknown]
- 1942Assistant Professor
- 1942Assistant Professor Of Biology
- 1947Assistant Professor Of Biology
- 1944Instructor In Biology
- 1954[position unknown]
- 1999[position unknown]
- 2001[position unknown]
- 2008[position unknown]