- 1917 to 19196
- 1920 to 192410
- 1925 to 19291
- 1930 to 193418
- 1935 to 193932
- 1940 to 194415
- 1945 to 194926
- 1950 to 195447
- 1955 to 19594
- 1960 to 196422
- 1965 to 196911
- 1970 to 19741
- 1975 to 19792
- 1980 to 19847
- 1985 to 19879
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