- 1966[subject unknown]Independent
- 1972[subject unknown]Library Readers
- 1973[subject unknown]Library Readers
- 1974[subject unknown]Independent
- 1977[subject unknown]Independent
- 1981[subject unknown]Other Research Personnel
- 1985[subject unknown]Independent
- 1995[subject unknown]Library Readers
- 1996[subject unknown]Library Readers
- 1997[subject unknown]Library Readers
- 1997[subject unknown]Library Room Readers
- 1998[subject unknown]Library Room Readers
- 1999[subject unknown]Library Room Readers
- 2000[subject unknown]Library Room Readers
- 2001[subject unknown]Library Readers