- 1801 to 1809 445
- 1810 to 1819 549
- 1820 to 1829 549
- 1830 to 1839 1,006
- 1840 to 1849 1,939
- 1850 to 1859 1,959
- 1860 to 1869 4,014
- 1870 to 1879 2,711
- 1880 to 1884 1,747
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