- 1852 to 18531,052
- 1854 to 18551,057
- 1856 to 18571,127
- 1858 to 18591,198
- 1860 to 18612,293
- 1862 to 18632,157
- 1864 to 18652,187
- 18661,736
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