- 1941 to 19441
- 1945 to 19490
- 1950 to 19540
- 1955 to 19594
- 1960 to 196426
- 1965 to 196940
- 1970 to 197410
- 1975 to 19794
- 1980 to 198452
- 1985 to 19894
- 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