- 1815 to 1819419
- 1820 to 1824505
- 1825 to 1829485
- 1830 to 1834584
- 1835 to 1839969
- 1840 to 18441,642
- 1845 to 18491,193
- 1850 to 18541,415
- 1855 to 18591,525
- 1860 to 18643,325
- 18651,861
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