- 1960 to 196138
- 1962 to 196338
- 1964 to 196538
- 1966 to 196738
- 1968 to 196938
- 1970 to 19711
- 1972 to 19731
- 1974 to 19751
- 1976 to 19771
- 1978 to 19791
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