- 1590 to 159928
- 1600 to 164954
- 1650 to 169954
- 1700 to 1749127
- 1750 to 1799634
- 1800 to 18493,696
- 1850 to 189913,512
- 1900 to 194943,360
- 1950 to 199971,306
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