- 1982[subject unknown]Independent
- 1983[subject unknown]Library Readers
- 1985[subject unknown]Independent
- 1986[subject unknown]Library Readers
- 1987[subject unknown]Library Readers
- 1988[subject unknown]Library Readers
- 1989[subject unknown]Independent
- 1994[subject unknown]Pricinipal Investigators
- 2002[subject unknown]Summer Investigators
- 2003[subject unknown]Visiting Principal Investigators
- 2004[subject unknown]Whitman Investigators
- 2005[subject unknown]Whitman Investigators
- 2006[subject unknown]Whitman Investigators
- 2007[subject unknown]Whitman Investigators
- 2008[subject unknown]Whitman Investigators
- 2009[subject unknown]Whitman Center Investigators
- 2010[subject unknown]Whitman Center Investigators
- 2011[subject unknown]Whitman Center Investigators
- 2012[subject unknown]Investigator
- 2013[subject unknown]Investigator
- 2014[subject unknown]Principal Investigator
- 2015[subject unknown]Whitman Center Scientist
- 2016[subject unknown]Whitman Scientist
- 2017[subject unknown]Whitman Center Associate
- 1985[subject unknown]Corporation Member
- 1986[subject unknown]Corporation Member
- 1987[subject unknown]Corporation Member
- 1988[subject unknown]Corporation Member
- 1989[subject unknown]Corporation Member
- 1990[subject unknown]Corporation Member
- 1991[subject unknown]Corporation Member
- 1992[subject unknown]Corporation Member
- 1993[subject unknown]Corporation Member
- 1994[subject unknown]Corporation Member
- 1995[subject unknown]Corporation Member
- 1996[subject unknown]Corporation Member
- 1997[subject unknown]Corporation Member
- 1998[subject unknown]Corporation Member
- 1999[subject unknown]Corporation Member
- 2000[subject unknown]Corporation Member