- 1953 to 19546
- 1955 to 19591
- 1960 to 19640
- 1965 to 19690
- 1970 to 19740
- 1975 to 19790
- 1980 to 19841
- 1985 to 198916
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