- 1815 to 1819380
- 1820 to 1824460
- 1825 to 1829426
- 1830 to 1834545
- 1835 to 1839895
- 1840 to 18441,606
- 1845 to 18491,148
- 1850 to 18541,403
- 1855 to 18591,515
- 1860 to 18643,311
- 18651,852
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