- 1800 to 18192
- 1820 to 18392
- 1840 to 18592
- 1860 to 18792
- 1880 to 18993
- 1900 to 19193
- 1920 to 19391
- 1940 to 19591
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