- 1852 to 18531,059
- 1854 to 18551,066
- 1856 to 18571,134
- 1858 to 18591,203
- 1860 to 18612,302
- 1862 to 18632,164
- 1864 to 18652,196
- 18661,743
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