- 1972 to 19748
- 1975 to 19768
- 1977 to 19798
- 1980 to 19818
- 1982 to 19848
- 1985 to 19868
- 1987 to 19898
- 1990 to 19918
- 1992 to 19948
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