- 1890 to 18912,947
- 1892 to 18942,549
- 1895 to 18962,488
- 1897 to 18992,605
- 1900 to 19012,791
- 1902 to 19042,340
- 1905 to 19062,334
- 1907 to 19092,669
- 1910 to 19112,588
- 1912 to 19143,051
- 1915 to 19162,667
- 19173,560
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