- 1930 to 19342
- 1935 to 19392
- 1940 to 19441
- 1945 to 19491
- 1950 to 19541
- 1955 to 19591
- 1960 to 19642
- 1965 to 19690
- 1970 to 19740
- 1975 to 19790
- 1980 to 19840
- 19853
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