- 1819238
- 1820 to 1824462
- 1825 to 1829429
- 1830 to 1834548
- 1835 to 1839926
- 1840 to 18441,607
- 1845 to 18491,151
- 1850 to 18531,298
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