- 1986 to 19871
- 1988 to 19891
- 1990 to 19912
- 1992 to 19930
- 1994 to 19958
- 1996 to 199717
- 1998 to 19993
- 2000 to 200119
- 2002 to 200312
The preservation of the Duke University Libraries Digital Collections and the Duke Digital Repository programs are supported in part by the Lowell and Eileen Aptman Digital Preservation Fund