- 1815 to 1819359
- 1820 to 1824442
- 1825 to 1829424
- 1830 to 1834543
- 1835 to 1839893
- 1840 to 18441,604
- 1845 to 18491,147
- 1850 to 18541,401
- 1855 to 18591,512
- 1860 to 18643,307
- 18651,849
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