- 1940 to 19448
- 1945 to 19494
- 1950 to 19540
- 1955 to 19590
- 1960 to 19640
- 1965 to 19690
- 1970 to 19742
- 1975 to 19792
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