- 1815 to 1819332
- 1820 to 1824414
- 1825 to 1829390
- 1830 to 1834513
- 1835 to 1839864
- 1840 to 18441,562
- 1845 to 18491,106
- 1850 to 18541,355
- 1855 to 18591,457
- 1860 to 18643,197
- 18651,786
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