- 1957 to 19592
- 1960 to 19643
- 1965 to 19692
- 1970 to 19743
- 1975 to 19792
- 1980 to 19842
- 1985 to 19894
- 1990 to 19940
- 1995 to 19998
- 2000 to 20011
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