- 1820 to 1829576
- 1830 to 18391,035
- 1840 to 18491,997
- 1850 to 18592,017
- 1860 to 18694,289
- 1870 to 18792,753
- 1880 to 18893,428
- 1890 to 18993,719
- 1900 to 19094,186
- 1910 to 19199,022
- 1920 to 19278,574
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