- 1817 to 1819283
- 1820 to 1829583
- 1830 to 18391,039
- 1840 to 18491,997
- 1850 to 18592,023
- 1860 to 18694,338
- 1870 to 18792,761
- 1880 to 18893,441
- 1890 to 18994,182
- 1900 to 19023,042
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