- 18591,010
- 1860 to 18643,197
- 1865 to 18692,554
- 1870 to 18741,907
- 1875 to 18791,752
- 1880 to 18841,759
- 1885 to 18892,432
- 1890 to 18943,190
- 1895 to 18992,805
- 1900 to 19043,138
- 19052,130
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