- 1960 to 19616
- 1962 to 19638
- 1964 to 196515
- 1966 to 196714
- 1968 to 19699
- 1970 to 197115
- 1972 to 197341
- 1974 to 197557
- 1976 to 197779
- 1978 to 197993
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