- 1800 to 1809 11
- 1810 to 1819 11
- 1820 to 1829 11
- 1830 to 1839 11
- 1840 to 1849 31
- 1850 to 1859 69
- 1860 to 1869 86
- 1870 to 1879 145
- 1880 to 1889 206
- 1890 to 1899 165
- 1900 to 1909 270
- 1910 to 1919 717
- 1920 to 1929 761
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