- 1815 to 1819345
- 1820 to 1824429
- 1825 to 1829408
- 1830 to 1834533
- 1835 to 1839885
- 1840 to 18441,596
- 1845 to 18491,137
- 1850 to 18541,386
- 1855 to 18591,496
- 1860 to 18643,255
- 18651,823
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