- 1965 to 19691
- 1970 to 19740
- 1975 to 19795
- 1980 to 19847
- 1985 to 19896
- 1990 to 199414
- 1995 to 19998
- 2000 to 20012
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