- 1827 to 1829352
- 1830 to 1834540
- 1835 to 1839890
- 1840 to 18441,600
- 1845 to 18491,139
- 1850 to 18541,392
- 1855 to 18591,504
- 1860 to 18643,296
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