- 1960 to 196151
- 1962 to 196351
- 1964 to 196551
- 1966 to 196751
- 1968 to 196952
- 1970 to 197165
- 1972 to 197364
- 1974 to 197564
- 1976 to 197771
- 1978 to 197968
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