- 1932 to 19341
- 1935 to 19391
- 1940 to 19444
- 1945 to 19496
- 1950 to 19540
- 1955 to 19591
- 1960 to 19647
- 1965 to 19696
- 1970 to 19742
- 1975 to 19793
- 1980 to 19842
- 1985 to 19891
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