- 1823 to 182940
- 1830 to 1839387
- 1840 to 18491,246
- 1850 to 1859595
- 1860 to 18691,026
- 1870 to 18791,293
- 1880 to 1889625
- 1890 to 189981
- 1900 to 190981
- 1910 to 191990
- 1920 to 19290
- 1930 to 19390
- 1940 to 19490
- 1950 to 19541
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