- 1967 to 19691
- 1970 to 19710
- 1972 to 19740
- 1975 to 19760
- 1977 to 19790
- 1980 to 19810
- 1982 to 19840
- 1985 to 19862
- 1987 to 19893
- 1990 to 19914
- 1992 to 19949
- 19955
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