- 1922 to 19244
- 1925 to 19294
- 1930 to 19347
- 1935 to 19398
- 1940 to 19447
- 1945 to 19497
- 1950 to 195412
- 1955 to 195910
- 1960 to 196412
- 1965 to 196927
- 1970 to 197433
- 1975 to 197934
- 1980 to 198431
- 1985 to 198923
- 1990 to 199337
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