- 1895 to 18995
- 1900 to 19093
- 1910 to 191912
- 1920 to 192941
- 1930 to 193992
- 1940 to 1949149
- 1950 to 1959133
- 1960 to 196940
- 1970 to 197947
- 1980 to 1989108
- 1990 to 19994
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