- 1850 to 18512
- 1852 to 18542
- 1855 to 18562
- 1857 to 18591
- 1860 to 18612
- 1862 to 18642
- 1865 to 18662
- 1867 to 18692
- 1870 to 18712
- 1872 to 18732
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