- 1965 to 19692
- 1970 to 19743
- 1975 to 19799
- 1980 to 19845
- 1985 to 19893
- 1990 to 19941
- 1995 to 199914
- 2000 to 20015
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