- 1852 to 18531,054
- 1854 to 18551,061
- 1856 to 18571,129
- 1858 to 18591,199
- 1860 to 18612,296
- 1862 to 18632,160
- 1864 to 18652,192
- 18661,740
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