- 1940 to 19447
- 1945 to 194956
- 1950 to 195413
- 1955 to 195911
- 1960 to 196414
- 1965 to 196938
- 1970 to 19749
- 1975 to 19794
- 1980 to 198418
- 1985 to 198910
- 1990 to 19911
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