- 1880 to 1884217
- 1885 to 18891,286
- 1890 to 1894885
- 1895 to 1899352
- 1900 to 1904277
- 1905 to 190934
- 1910 to 1914119
- 1915 to 191913
- 1920 to 192412
- 1925 to 19291
- 1930 to 19340
- 1935 to 193953
- 1940 to 19440
- 19451
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