- 1870 to 18711
- 1872 to 18731
- 1874 to 18750
- 1876 to 18770
- 1878 to 18790
- 1880 to 18810
- 1882 to 18830
- 1884 to 18850
- 1886 to 18870
- 18881
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