- 19591
- 1960 to 19640
- 1965 to 19690
- 1970 to 19740
- 1975 to 19798
- 1980 to 198426
- 1985 to 198922
- 1990 to 199426
- 1995 to 199929
- 2000 to 200215
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