- 1842 to 18431,033
- 1844 to 1845803
- 1846 to 1847790
- 1848 to 1849903
- 1850 to 18511,019
- 1852 to 18531,013
- 1854 to 18551,015
- 1856 to 18571,085
- 1858 to 18591,156
- 1860 to 18612,217
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