- 1822 to 1829534
- 1830 to 18391,076
- 1840 to 18492,012
- 1850 to 18592,044
- 1860 to 18694,363
- 1870 to 18792,775
- 1880 to 18893,455
- 1890 to 18994,232
- 19002,776
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