- 1928 to 19299
- 1930 to 193413
- 1935 to 19399
- 1940 to 19447
- 1945 to 194916
- 1950 to 195415
- 1955 to 195916
- 1960 to 196412
- 1965 to 196911
- 1970 to 19748
- 1975 to 19798
- 1980 to 19848
- 1985 to 19898
- 1990 to 19941
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