- 1850 to 18511
- 1852 to 18541
- 1855 to 18561
- 1857 to 18591
- 1860 to 18611
- 1862 to 18641
- 1865 to 18661
- 1867 to 18691
- 1870 to 18711
- 1872 to 18731
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