- 1960 to 196117
- 1962 to 196317
- 1964 to 196517
- 1966 to 196717
- 1968 to 196917
- 1970 to 197118
- 1972 to 197318
- 1974 to 197518
- 1976 to 197718
- 1978 to 197918
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