- 1821 to 1824395
- 1825 to 1829418
- 1830 to 1834540
- 1835 to 1839890
- 1840 to 18441,600
- 1845 to 18491,139
- 1850 to 18541,392
- 1855 to 18571,219
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