- 1880 to 18891
- 1890 to 18992
- 1900 to 190914
- 1910 to 191944
- 1920 to 192931
- 1930 to 193984
- 1940 to 194988
- 1950 to 195940
- 1960 to 196933
- 1970 to 197929
- 1980 to 198926
- 1990 to 199916
- 2000 to 200613
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