- 1964 to 19658
- 1966 to 19675
- 1968 to 19692
- 1970 to 19710
- 1972 to 19730
- 1974 to 19750
- 1976 to 19770
- 1978 to 19790
- 1980 to 19810
- 1982 to 198317
- 19848
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