- 1940 to 19443
- 1945 to 19493
- 1950 to 19546
- 1955 to 19596
- 1960 to 19642
- 1965 to 19691
- 1970 to 19740
- 1975 to 19790
- 1980 to 19831
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