- 1845 to 18491
- 1850 to 18541
- 1855 to 18591
- 1860 to 18641
- 1865 to 18691
- 1870 to 18741
- 1875 to 18791
- 1880 to 18841
- 18851
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