- 1840 to 18411,067
- 1842 to 18441,198
- 1845 to 1846885
- 1847 to 18491,025
- 1850 to 18511,059
- 1852 to 18541,162
- 1855 to 18561,075
- 1857 to 18591,307
- 1860 to 18612,295
- 1862 to 18632,158
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