- 1852 to 18531,047
- 1854 to 18551,052
- 1856 to 18571,122
- 1858 to 18591,194
- 1860 to 18612,288
- 1862 to 18632,151
- 1864 to 18652,185
- 18661,734
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