- 1861 to 1861 1,718
- 1862 to 1862 1,599
- 1863 to 1863 1,728
- 1864 to 1864 1,734
- 1865 to 1865 1,673
- 1866 to 1866 1,630
- 1867 to 1867 1,585
- 1868 to 1868 1,495
- 1869 to 1869 1,360
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