- 19098
- 1910 to 191910
- 1920 to 192913
- 1930 to 193915
- 1940 to 19497
- 1950 to 19596
- 1960 to 196912
- 1970 to 1979161
- 1980 to 1989213
- 1990 to 19972
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