- 1973 to 19741
- 1975 to 19760
- 1977 to 19790
- 1980 to 19810
- 1982 to 19840
- 1985 to 19860
- 1987 to 19890
- 1990 to 19912
- 1992 to 19940
- 1995 to 19960
- 1997 to 19982
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