- 1851997
- 1852 to 18541,176
- 1855 to 18561,085
- 1857 to 18591,318
- 1860 to 18612,308
- 1862 to 18642,491
- 1865 to 18662,203
- 1867 to 18691,970
- 1870 to 18711,348
- 1872 to 18741,631
- 18751,209
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