- 1851 to 18541
- 1855 to 18593
- 1860 to 18644
- 1865 to 18692
- 1870 to 18740
- 1875 to 18791
- 1880 to 18841
- 1885 to 18893
- 1890 to 18941
- 1895 to 18996
- 1900 to 19043
- 1905 to 19091
- 1910 to 19145
- 19151
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