- 1965 to 19691
- 1970 to 19747
- 1975 to 197914
- 1980 to 19843
- 1985 to 19891
- 1990 to 19942
- 1995 to 19994
- 2000 to 20026
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