- 1836 to 1839821
- 1840 to 18441,599
- 1845 to 18491,139
- 1850 to 18541,389
- 1855 to 18591,499
- 1860 to 18643,259
- 1865 to 18692,600
- 18701,043
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