- 1957 to 19592
- 1960 to 19640
- 1965 to 19690
- 1970 to 19740
- 1975 to 19791
- 1980 to 19844
- 1985 to 1989274
- 1990 to 199487
- 1995 to 199999
- 2000 to 2003215
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