- 1961 to 19641
- 1965 to 19690
- 1970 to 19749
- 1975 to 19793
- 1980 to 19840
- 1985 to 19891
- 1990 to 19940
- 1995 to 19965
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